BallReviews

General Category => Coverstock Preparation => Topic started by: JohnN on December 16, 2018, 09:22:50 AM

Title: How long before sanding calms down
Post by: JohnN on December 16, 2018, 09:22:50 AM
So you just refreshed your solid at your favorite grit. How long before that sanding “calms” down ? Seems like when I refresh a ball it hooks during practice and for a few frames and then loses a couple of boards.
Title: Re: How long before sanding calms down
Post by: Impending Doom on December 16, 2018, 10:06:36 AM
What grit are you using? Every time you throw a ball.down the lane, the surface changes.
Title: Re: How long before sanding calms down
Post by: Bowlaholic on December 16, 2018, 10:24:40 AM
There are youtube videos that show the change in surface grit after each game in a 3 game set.  BTM also has published studies showing similar results.  All were measured using a laser scanner.
Seeing the results for the first time come as a shock to a lot of people.  But, as Impending Doom stated the surface grit of the ball changes each time it goes down the lane.
Title: Re: How long before sanding calms down
Post by: JohnN on December 16, 2018, 11:01:56 AM
I usually finish with either 1500 or 2000 grit. Just seems like after I freshen a ball that during practice the ball is hooking nice and after and maybe midway through the first game I lose a couple of boards. Just wondering if this is what other people experience.
Title: Re: How long before sanding calms down
Post by: Impending Doom on December 16, 2018, 11:13:52 AM
I usually finish with either 1500 or 2000 grit. Just seems like after I freshen a ball that during practice the ball is hooking nice and after and maybe midway through the first game I lose a couple of boards. Just wondering if this is what other people experience.

At that grit, you are probably losing a bit of reaction because the ball is bleeding off some energy in the fronts. Is there a reason you use that low of a grit?
Title: Re: How long before sanding calms down
Post by: JohnN on December 16, 2018, 11:44:47 AM
The balls I use recommend that grit. Will be experimenting with 3-4000 soon.
Title: Re: How long before sanding calms down
Post by: Impending Doom on December 16, 2018, 02:12:41 PM
The surface needs to match the condition you're bowling on. Sounds like you're using too much surface. What the manufacturer recommends is just that. A recommendation.
Title: Re: How long before sanding calms down
Post by: JohnN on December 16, 2018, 02:19:34 PM
That may be true, but why does it change from from practice or the middle of the first game ? What I’m wondering is how long does it take for that new sanding to start changing.
Title: Re: How long before sanding calms down
Post by: Impending Doom on December 16, 2018, 02:27:07 PM
Surface changes with every shot. What I think you're missing is that you're using TOO much surface. As the pattern changes, your ball (don't know which one yet) is expending too much energy in the middle of the lane. You need to use less surface
Title: Re: How long before sanding calms down
Post by: JohnN on December 16, 2018, 02:28:32 PM
Will give it a try and see what happens.
Title: Re: How long before sanding calms down
Post by: Impending Doom on December 16, 2018, 06:11:09 PM
You know, I'm dying to know what ball this is.
Title: Re: How long before sanding calms down
Post by: JohnN on December 16, 2018, 07:15:11 PM
Actually has happened with most balls I have used. I have Radical Katana Dragon, Radical Cash, Radical Guru Supreme, DV8 Guru. Some nights it just seems (after a fresh sanding)the ball moves real nice in practice and into the first game but then I need to move to where I’m not putting the ball out as much or even square up . Being a lefty I usually don’t have much company on my side. Maybe I’m throwing slower in practice (meters aren’t on)? Getting an og Katana soon so we’ll see what happens then with a polished ball.
Title: Re: How long before sanding calms down
Post by: SVstar34 on December 16, 2018, 07:53:49 PM
Actually has happened with most balls I have used. I have Radical Katana Dragon, Radical Cash, Radical Guru Supreme, DV8 Guru. Some nights it just seems (after a fresh sanding)the ball moves real nice in practice and into the first game but then I need to move to where I’m not putting the ball out as much or even square up . Being a lefty I usually don’t have much company on my side. Maybe I’m throwing slower in practice (meters aren’t on)? Getting an og Katana soon so we’ll see what happens then with a polished ball.

Now the question becomes... Do you actually need that much ball? All those you listed are balls that need a lot of oil.

It's very possible that there isn't enough oil for any of those at 1500-2000. Going to 4000 surface or even polishing could be useful
Title: Re: How long before sanding calms down
Post by: ignitebowling on December 16, 2018, 08:03:15 PM
Half way through game 1 when the ball starts losing hook move towards the oil. Rate of change depends on the hardness of the ball,  ball surface,  hardness of the lane and the lanes surface,  amount of oil,  rev rate and likely other things. 

https://www. youtube.com/watch?v=PMwsO2JCZxY
Title: Re: How long before sanding calms down
Post by: Impending Doom on December 16, 2018, 08:15:40 PM
Actually has happened with most balls I have used. I have Radical Katana Dragon, Radical Cash, Radical Guru Supreme, DV8 Guru. Some nights it just seems (after a fresh sanding)the ball moves real nice in practice and into the first game but then I need to move to where I’m not putting the ball out as much or even square up . Being a lefty I usually don’t have much company on my side. Maybe I’m throwing slower in practice (meters aren’t on)? Getting an og Katana soon so we’ll see what happens then with a polished ball.

Most of those are very strong covers. Keeping them at 1500 will basically blow a hole in the middle of the lane. If you need a ball to start off at 2000, then you need to change to a ball at 4000 or polish to get more bounce off of the hole you've blown in the mids
Title: Re: How long before sanding calms down
Post by: charlest on December 17, 2018, 05:33:22 AM
That may be true, but why does it change from from practice or the middle of the first game ? What I’m wondering is how long does it take for that new sanding to start changing.

Some studies have shown that 1000-1500 grit becomes 4000-4500 in 3-6 games.
4000 grit balls also tend towards 4500-5000 grit after the 3 games.

The more worn the lane surface, the faster the ball becomes rougher.  Even synthetics are not as smooth as you might imagine. DOn't the ball is not only going down the lane fairly rapidly, it is also revolving depending on your rev rate. That's a lot of friction.

Remember how much the ball speed changes when the ball hits the breakpoint and starts it hooking!! That's a lot of friction and it's hitting the ball surface.

Based on this, it's not too much to hit the ball with the a damp abrasive pad of the grit you have the ball, by hand after every 3 game set. It takes maybe 30 seconds; then wipe the ball off with a damp paper towel to remove the dust/slurry.
Title: Re: How long before sanding calms down
Post by: JohnN on December 17, 2018, 08:09:51 AM
Thanks for all the input.
Title: Re: How long before sanding calms down
Post by: MrNattyBoh on December 19, 2018, 02:50:44 PM
I have seen this with a few different balls. Most recently a Storm Alpha Crux and a GB3. Both need oil, you cant stay in the same place for long with an Alpha crux at 3000 or lower. GB3 is the same way. I have learned this over the last few months, not from stupidity, but by experimentation. I like to see how much versatility I have in my equipment. Once you blow up the lanes, also depending on who you bowl with/against, you will need to move in and catch the oil or ball down and stay close to where you were.