Received my Nasty and Heritage seed balls two weeks ago.  Drilled both and have thrown each enough to feel more confident in providing an objective review. 

Bowler Specs
Right Handed
Ball Speed 18mph Qubica
Rev Rate- 375
Tilt- 15*
Rotation- 30*

Heritage
I layed this one out 55x4x65 P3 and removed the factory finish with a 10 micron Trizact Pad and reapplied 3M Finesse It polish.  I changed the surface only to make repeating it later easier on myself.  This ball draws attention with a sharp color combination and a very cool looking Lizard engraved for the mass bias.  None of my teammates can remember the actual name of the ball, it is now known as the Lizard.  Nonetheless, the ball gets through the heads with ease, picks up a strong read of the midlane and makes a hard arc towards the hole.  I wouldn't describe it as extremely angular, but it does come off the spot pretty firm.  The main thing I like about this ball is that thus far, I have been able to throw it on some rather challenging conditions and the ball does not overread, nor skip through the breakpoint. The particle pearl cover blends out the pattern very nicely.

Nasty
This ball was laid out with somewhat of an odd layout 60x2 1/2x40 P3.  I chose this layout beacause I wanted something dull and strong, but controllable.  In the past I have had success using this layout on a Lanemasters Guaranteed, and an AMF Mega Recovery.  The reaction I was seeking was a very heavy rolling ball that revs early and lays off at the end of the pattern.  So far the sought after reaction is exactly what I got.  On a 40ft. heavier flat pattern with cleaner backends, the Nasty rolls early and comes off the end of the pattern smoothly.  This ball plays great staying more square to the targer which is what I prefer to do on tighter patterns.  Overall, this ball is very strong, but extremely controllable.  I would recommend this one to anyone seeking a heavier oil ball.