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Author Topic: Coverstock Prep Vs. Style  (Read 1391 times)

Mike E

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Coverstock Prep Vs. Style
« on: October 07, 2005, 12:04:35 AM »
I would like to hear some opinions from you guys who have been doing this a lot longer than me.I'm talking about the old 70%/30% coverstock prep verses drilling argument.I purchased a new ball spinner this past summer(innovative 2 speed). I had several balls drilled leverage full roller(pin 3&3/8" to grip center) that I just couldn't use on your THS because they just hooked too much. One was a Brunswick HPD which comes factory finished with Trizact (not sure which grit). I figured if ball reaction is 70% coverstock I should be able to overcome the leverage drill. Do you think this was a wrong assumption? I first sanded the ball with Green trizact(360 grit) 6 sided method for 45 seconds each side. Then blue trizact (1100 grit), Then orange trizact (1600 grit), then White Trizact(not sure what grit this is but I saw it mentioned here that maybe it's 5000) Then polished with Track Delayed Reaction.Guess What? No difference! Still couldn't use it on your THS. So for me I was lucky if cover prep was 10% of the balls reaction.My main question was do you think this is due to my style(remember I'm a full roller). Anyway I had the ball redrilled Pin 2" to grip center and now can use the ball on your THS.I tried the same experiment on my daughter (she is a tweener style). She had a Roto Grip Sonic Boom ( 1500 grit OOB finish) that was too strong for her(ball was leveraged drill). I took it to 4000 abralon with polish. Now on your THS this ball goes straight with only a small hook on the backend. Could it be that our different styles(full roller vs. tweener)play an important role in how much coverstock matters?  I would be interested to hear any opinions you guys have on the subject.
                                    Thanks,
                                    Mike E
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Did you know that you can't see pigs in a windstorm?

 

charlest

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Re: Coverstock Prep Vs. Style
« Reply #1 on: October 07, 2005, 09:45:15 AM »
Mike,

I can offer these thoughts:

* I think you're making an invalid assumption here. There's coverstock and then there's the cover's surface preparation or finish. No one ever said that you could modify any cover's finish to make it applicable to any oil pattern + lane surface + bowler's release. The coverstock must first be chosen with respect to the above 3 factors to insure it is usable. Then you can modify the cover's finish.

With regard to the HPD, a lengthy application of one of Brunswick's particle ball, I also do not remember what the finish was nor what it was. I found Brunswick's data sheet:
http://www.brunswickbowling.com/uploads/images/1204/Danger_Zone_Pro_Distance.pdf
It seems to be DTX-1, a very light "application" of particles, intended for lots of length. I assume it had the white trizact that puts a virtual polish on a particle ball.

* From my experience, even if you modify the ball's surface, one cannot always counteract the effects of a leverage drilling. They just flare too much and too early.

* BTW you never indicated how the HPD reacted that make it such that you couldn't use it. I asume it was too early and burned itself up very early.

* During your resurfacing process I would never have applied Delayed Reaction until I had tried the ball with the white triact finish. YOu have to sand that out as it partially clogs the pores of the ball.

You asked:
"Could it be that our different styles(full roller vs. tweener)play an important role in how much coverstock matters?"

All factors take some part in that scenario, including ball speed and tilt (a full roller technically has no tilt; so they tend ot need to rely on surface and drilling even more.) and angle of rotation.
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Mike E

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Re: Coverstock Prep Vs. Style
« Reply #2 on: October 07, 2005, 10:45:13 PM »
charlest, Thanks for your reply.
* I think you are correct. I was assuming that I could tweak a cover to possibly reduce or increase any reaction by 70% but that was a misconception on my part.
* You know it makes sense that the HPD might have come OOB finished with the white trizact. Then when I redid it with the white trizact that would explain why there was no change in reaction.
* I really couldn't keep the HPD on the right side of the headpin until I redrilled it 2" to grip center.When I think about it more the combination of short oil(just to the arrows) and my somewhat slow(14 mph) ball speed did not help matters any.

* Thanks much for your insights. I appreciate you taking the time.The older I get the more I realize that the only stupid question is the one you don't ask!            

                                     Thanks Again,
                                     Mike E
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Did you know that you can't see pigs in a windstorm?