Our shop punches them up like the old helixes.

Step 1: Turn ball to the side and take a yellow grease pencil and mark the center of the Hubcap

Step 2: Align the marked center on the bowler's PAP

Step 3: Measure over to the bowler's center of grip from the PAP

Step 4: Layout & Drill

If you do not change your hand position from strike to spare, the Tire should stay still in your track.  It's hard to believe he can't "drill it right" though, if someone told me that I'd be looking for a new proshop, but explain this method to him and you should be alright.  These things have been selling like hotcakes, I think we're on our 3rd case.
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-DP3
...

I have it drilled negative with the cg shifted about 2".  Hole on my negative axis to get out the excess negative side weight.  This puts the track right on the center of the tread.  When I hook it the rim is rolling sweet, facing me at a 45 degree angle.  When I throw it straight it rolls straight for the most part, but the tire wobbles a little at the end.  This by far is the coolest way to do it.  Make sure you take your time with setting it up though and bring a current spare ball for the track.

Thanks,
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Roger Noordhoek
Technical & Customer
Services Manager
Roto Grip, Inc.
888-450-6920
RogerN@rotogrip.com
www.rotogrip.com

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