I tried the deep-hole drilling but didn't really notice that much difference. In fact, I'm coming to the conclusion that how I drill my ball has very little to do with it's overall motion.
I can drill a ball to go straight, but if I want, I can make it bend out of the building. I can also drill a ball to bend out of the building, but make it go straight.
The USBC ball motion study shows that ball-surface and lane-surface make up 85% - 90% of a ball's motion. The rest comes from whatever RPM's, rotation and tilt the bowler can put into their release.
I'm pretty versatile, so I stay away from the high-end nose-bleed surfaces and stay in the 175-200 range on the 'Perfect Scale'.
If I was bowling competitively, it might be a different story, but for a THS, unnecessary.
A perfect analogy to describe the new balls, is that of an old person driving a 2 ton car with power steering, power brakes and radial tires. Then have a deer jump out in front of the them :-) Their chance of controlling the car is practically zero :-) The same applies to new bowling balls.
I think most bowlers at the professional level would all be using balls made years ago if they didn't have contracts with a manufacturer.
I bowled better with middle-of-the-road numbers like 50 x 5 x 50 than I ever have using 3-3/8 and acute VAL's. The simple answer is control. If I was 41 instead of 71 I'm sure it would be different.
I'm friends with the lane guy where I bowl. He likes to keep the pattern a secret. Generally speaking though, it's a 39 foot XMas tree. He hasn't changed it in years. As I hear other bowlers complain about the shot, only 2 variables have changed; Their age and their equipment. If their average is dropping, they either need to find a fountain of youth or an old Hy-Road :-)