Had a NoMercy drilled at another shop for a righty guy. Ball got into a quick roll, but never flared or flipped. The pin became a solid dot before the arrows and stayed that way till the pit. Ball did not hit well at all. Rolled nice and looked good until 3/4 lane and then just walked straight. As long as ball was heading toward head pin before 3/4 lane would make pocket ok, but if swung at all would not recover except for dry lanes. Would be ok for low rev down and in players, or heavy flatter patterns with flying clean backends where guys with some hand could go up the outer boards and not jump off the end.
But you never know how a bad looking drill can be majic for the right guy on the right shot.....ball is basically set up with core rolling like a rolling pin, and cover only making its move. Could be good.....or not. Al