Unless there is someone with a very unusual release, the track diameter shrinks as the track moves away from the grip and gets larger as it moves closer with a full roller being the most.

There is no reason a bowler can't be successfull with a low track diameter like Mike Fagan there have been many other successfull bowlers with low tracks like Mark Roth, Brian Angelo, Tom Baker, and many others. On some shots there is a hube advantage in having a low track, like when the heads are blown up and the oil has carried down.

What drill patterns work is a little different for them on different conditions than for high trackers. Typically the low track bowler needs more flare and surface to help mantain control of the break point than a high track player. Low track players will have more success with pin axis drillings than high track players as the lanes dry out. For heavy oil both low and high trackers are close to if not on 3 3/8 leverage, on dryer lanes, the high track player will go with pin positions farther from the pap and the low track player will go with pins closer to the pap.

Every Asymetrical ball is shapped different, and when one is released, the manufacurer usually conducts classes on how to layout and drill the ball for specific bowler types. This is why you have to read the drilling instructions.

I have found over the years that people with a 45 degree release tend to get the manufacturer's intended reactions from the drilling instructions. If you get more than 45 degrees of rotation on the ball, let's say 75 degrees, you subtract 75 from 90 and get 15 degrees, and for a bowler that gets 75 degrees of axis rotation, that is the same as a 45 degree drilling for a 45 degree release. So if you want a 45 degree drilling and you get 75 degrees of axis rotation you should drill the mb at 15 degrees (90-75=15) from your pap.

If the drilling instructions say to drill a certain reaction at 90 degrees, you subtract 30 degrees (45-15) from 90 and drill the ball with the mass bias 60 degrees from the pap. If you want measurments, 3/8" = 5 degrees so if you want to drill the ball at 60 degrees you devide 60 by 5 = 12 x 3/8 = 36/8 = 4 2/8 or 4 1/4" from your pap.