I bowl on PBA patterns every week and I use 5-1/2" to 6" PAP to pin distance almost exclusive. I find that high-flare drillings that work wonderfully on THS are too over/under on sport patterns, resulting on splits. A low-flare, smooth, arcing drilling works as I usually play straight down and in on these patterns as opposed to swinging the ball on THS. Furthermore, pin distances from PAP of 5" are becoming more popular even on THS. Between a high rev release and the super low rg, high-flaring core, the usual 3-3/8" drilling is not the best choice anymore. The result of this combination is over-flaring, which results in rolling over previous flares, thus, simulating carrydown. In this case, the 5" pin to PAP will result in more overall hook. All this needs to be considered when selecting a drilling. Not everyone can go into the shop and say "drill this like (insert pro here)'s ball" Most ball drillers will be happy to entertain these ideas, but should ultimately let the customer know whether it suits their game or not.
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Where is the bait? I'm goin' to jail!!! - Chocolate GAYzer