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Author Topic: Motion hole drilling  (Read 9150 times)

Supermo

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Motion hole drilling
« on: July 24, 2016, 05:29:52 PM »
I have seen the vid on the Motion hole drilling and it looks good to help maybe the bowlers who have not got a lot of revs and finish on their balls. What bowlers have tried this drilling and what effect has it had on their game. Thanks for any replies.

 

amyers2002

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Re: Motion hole drilling
« Reply #16 on: September 19, 2016, 11:24:21 AM »
The motion hole layout works on symmetricals, it's a craps shoot on asymmetricals.  Asymmetrical cores are just that, asymmetrical, so you don't know what the area of the core you're drilling the motion hole in looks like.  So it works on some but not on others.  That's why Mo stopped recommending it for asyms.  --  JohnP

Nailed it

Strider

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Re: Motion hole drilling
« Reply #17 on: September 20, 2016, 09:06:09 PM »
I don't know if he's right or not, but my pro shop told me not to put a motion hole on an already plugged ball.

LOL.

Drill away G.

I've since changed shops, but maybe he was concerned where the new CG would be after plugging?  Maybe good shops check (even a new ball) for the CG before drilling, but I've never seen one do it.

Anyway, I had a weight hole plugged on a Brunswick Ringer and added a Motion hole.  So far I like it.  Threw about 6 or 7 shots on Viper and it got down lane much easier and made a pretty strong move down lane.  I'll also throw in on a house shot on Thursday.

JohnP

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Re: Motion hole drilling
« Reply #18 on: September 21, 2016, 12:51:57 PM »
I always check a plugged ball for cg location, it usually ends up fairly close to the marked cg.  I only check a new ball if the numbers appear to be suspect.  If I'm drilling for someone that doesn't want a balance hole and using a layout that will be close on static legality I check the weights before drilling to be sure it will be OK.  Side weight will be very close to the check, finger/thumb weight will depend on the size and depth of the holes drilled but will give a good estimate.  --  JohnP

Strider

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Re: Motion hole drilling
« Reply #19 on: September 23, 2016, 04:44:16 PM »
The motion hole did make a pretty good difference, but not enough to save this turd.  It does push the reaction further down lane with a little more oomph, but this ball seems to have a terrible core/cover match up for me.

kotm

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Re: Motion hole drilling
« Reply #20 on: September 30, 2016, 04:44:57 PM »
I don't know if he's right or not, but my pro shop told me not to put a motion hole on an already plugged ball.

LOL.

Drill away G.

I've since changed shops, but maybe he was concerned where the new CG would be after plugging?  Maybe good shops check (even a new ball) for the CG before drilling, but I've never seen one do it.

Anyway, I had a weight hole plugged on a Brunswick Ringer and added a Motion hole.  So far I like it.  Threw about 6 or 7 shots on Viper and it got down lane much easier and made a pretty strong move down lane.  I'll also throw in on a house shot on Thursday.

If properly placed, make the hole bigger in 1/8" increments until you like the ball reaction.  You may have to skuff the cover as the hole size increases.  Operators need to know how to remove the weight correctly and still hit the core in the correct quadrant....  it doesn't require much critical thought...
Good Luck & Good Bowling!

Ron Machniak
www.Precisionbowlingproshop.com

Impending Doom

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Re: Motion hole drilling
« Reply #21 on: September 30, 2016, 09:21:33 PM »
The motion hole did make a pretty good difference, but not enough to save this turd.  It does push the reaction further down lane with a little more oomph, but this ball seems to have a terrible core/cover match up for me.

Been there before.