Drilled up the blue vibe to go long: 5 in from PAP with CG kicked way out to the right.( right handed bowler)

---------o-pin
--------O-O------
-------------X-CG

---------O-------            
                           

Tried it twice on different lanes on different days.

It clears the head pretty well and starts to hook about the right time, But the small hook "dies" ( no continuous hook). It's more like a small change in direction. Cosequently the carrry is not good although the hitting power is good. I often leaves out 5 or 7. If I put more hand( for side rotation) it would improve a little. I have no similar problem with other balls but then again, this is the only ball drilled to go long.
 
I wonder if a "balance hole" 5 in. to the right of the span will help to get a more continuous backend? Or the ball was drilled with the wrong "mass bias"?

Thank you in advance!

Vincent


Edited on 9/9/2007 1:02 AM

Edited on 9/9/2007 1:23 AM

Thank you very much Dannial! I'll prob take it down to 800 grit. What do you think? I know I'll get more hook but I also think that a "straight" hook is a sign of "loss of energy" and roughing up the surface may actually make it worse......

I have medium rev and ball speed but as I mentioned: other balls not drilled the same are OK.

Please note that I messed up on the lay-out diagram. I did not put in the "-"s and it got altered. I have fixed it.

Vincent

Edited on 9/9/2007 1:22 AM

Thank you Steven! good advice indeed!

No carrydown: pretty dry.

One mistake I made: did not know there's a different between Blue and Cherry Vibe( according to Bowling.com and Bowlingball.com they have the same specs).

Dannial said to "alter" the surface. Go rougher or smoother?

CG kicked way out: looks pretty odd to me. Does it affect the "mass bias"? Will too much side weight help or hurt the backend? I read it in the Roto-grip drilling instruction that the "mass bias" will affect the backend.....

Thanks again!

Vincent

no300, with the cg that far right of center you will more than likely need a weight hole because of too much side weight. You never did mention what your axis point is, but a hole past that would increase the flare and might give you a bit of help.

Dyno, you can put one before the axis to decrease flare. Also try it at 4000 abralon and no polish, it might smooth it out for you.
--------------------
TEAM HammerHead
2008 USBC Nationals
ABQ, NM

Thank you bluerr and Dannial! I am not sure where my PAP is but I can tell you these:
I am a high track player.
After I got it drilled I asked him why the CG was kicked out so much and he said he had to measure the same distance( 5 in. from PAP) to the mid-line of my span?
I was thinking the way the weight block/core is placed would affect the way it rolls but I talked with another pro shop owner/driller and was told the location of the CG would not affect the ball much. I "really" like to clear this once and for all.

That makes it very confusing for the weight hole. According to Hammer, the hole should be "4-5 inch from the center of the span on a line through center of gravity". So the hole will be almost right on the PAP and hardly passes the PAP?

Brunswick has a more reasonable weight hole placement method just like bluerrpilot mentioned. I am "almost" willing to take a chance at 7 in. from span( just not enough hook overall) but I'll try Dannial's suggestion first.

Dannial, I was never able to find the surface grit from the factory but it looks and feel pretty polished( est. 1500 to 2000). So 4000 abarlon will make it smmother and go longer. But won't that make it hook even less? Can I try Neo-tac's Control-it( supposed to give more length)instead? I alredy have it.

When you say "shinny" does that mean "polished" ? It just came out of the box.....lanes were pretty dry but I thought if they were way too dry then I would get more reaction in mid-lane( which it does not). "overall" hook is not much.

Anyway, it will be a few days before I can try anything......

Thanks again!
Vincent

Edited on 9/9/2007 4:09 PM

Edited on 9/9/2007 4:13 PM

OK Dannial, after reading more threads I came up with 2 that may apply to me: 1 says that there is no true length drilling for high trackers whose always have problem getting the ball down the lane. "General layout" pin 4 in. from PAP "is our friend". So it could be a bad layout for me.

Another guy says a ball may have to be "broken in" or have the polish worn off, like you suggested. I think it's the combination of those 2.

So my next step will be back to the pro shop for a weight hole( you are right: not 7 in. from span, lol! was exaggerating). If it's still not right then I'll try to take out the polish.

Will report the outcome next week. Thank you so very much!

Vincent

I agree with D Pat, it sounds like the ball might be burning up or you have some carry down. I track high also, and I have that drill on a couple of bowling balls. The cg is not kicked out as much as on your ball though. That drill is long and strong on the backend for me. You might already be getting all the flare you need for the house shot. You might want to go the other direction and add a little polish. 2cents

Still need help at the backend?  Yes,  but it's the pins that do, lol! why didn't they name this ball No Mercy Kill 'em? ( Just kidding!)

Balance/weight hole added, normal release added about 2-3 boards. Hook looked OK.
With a 10 O'clock release added another 2-3 boards. Backend looks excellent!

It looks like I had added a total of a ball's width and the best part is it's mostly at the backend! I can easily "see" the ball rolling healthily at mid lane( looks like this ball can clear any head with ease) and then transforms to a really heavy and driving roll to the pocket. Power is outstanding for a lighter(14 lb) ball and only medium ball speed. But the carry is "GREAT"!

How about NO standing 5 pin in the last 7 games? Most of the light hits were strikes and I had 2 memerable ones that initially left 8 and 10( split) standing only to be taken down by other pins a second later. About 10 dead on head pin shots resulted in only 2 splits in 7 games! Had 3 games over 200 with highs of 227 and 230. Nothing to brag about but I am 100% satisfied with this ball now.

A BIG thank you to all of you again!

Vincent