Well I did bowl in a couple of conditions.  

1.  Sport shots dirty backends heavy!! oil.   I could only move it 10 boards, which was about 4 more than my other balls

2.  House shot clean backends light to med oil, it seems to turn the cornor late and not read the lane very well.  This tends to leave a lot of splits and 10s.

This ball probably only has 10 to 15 games on it.  It looks brand new, I towl dry every shot and use cleaner after every 3 games.

I am open to offers

You say you're throwing a BVP Punisher, which is a great light to medium oil ball.  If you're punisher is finishing harder, it means it's not burning up all of its energy through the heads and midlane.  If the GP2 is drilled very aggressive and the Punisher is giving similar results (but hits harder), it's likely that the GP2 is just burning up.  It's a VERY STRONG ball in regards to oil-handling capabilites in comparison to the Punisher.

Scenario 1, I don't understand why the GP2 would only hook 10 boards on a heavy-oil shot.

Scenario 2, the ball is definitely burning up.  It's made for heavy-oil and drilling the ball aggressive means it wants super-duper-heavy-oil.  The ball is losing its energy here, thus resulting in poor continuation through the pins which results in a lot of 10 pins.

See if you can find a very heavy-oil shot (ie. 42'+ of oil with relatively clean backends.  If the GP2 doesn't outhook your other equipment on this shot, there's likely to be a problem regarding the drilling and match up to your game).  If not, you could probably polish it and re-drill it weaker.
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-Dino

Hey hack,

I agree with Icetink here that the Punisher is meant more for med oil.  If that ball can react/hook well, then the oil condition is only at a medium level of concentration.  On true heavier oil, this ball should not be able to react as well as your seeing and the GP2 will show it's strength.

You mentioned that your pin is next to the ring finger on the GP2, but where is your mb placement?  If it is too close to your thumb area (or left of thumb) and far enough away from your pap, this is also another attributing factor as to why the ball is not hooking as strong.  Let us know and we'll try to help...
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Rick Leong
Ten Pins Pro Shop
Track Intl. - Amateur/Pro Shop Staff  
Vise Inserts Staff

So I made some modification to the ball.  I realized my thumb was hanging up just screwing up my rotation.  I sanded the thumb out, and also had the wrong size finger tip in the ball, that was also hanging up.  

After all the modding the ball was coming off clean and moving early and hitting hard.  The ball read the lanes well and really had a nice recovery.  I did leave a couple of 7's and a couple of 10's, but they were legitimate misses.

This is a pretty solid ball, I feel with a few more games it will grow on me.