Par4QC It appears that every golfer, right down to the Thursday Senior Ladies League will actually be using the throttled back ball. Swing speed is not the issue.
The testing limits are the 317 yards, but all will be affected.
The ONLY reason that the average golfer will not recognize a big difference is that they have arguably, never hit two balls the exact same in their golfing lives.
A thinned ground ball will mathematically still go shorter than the current ball and the same thinned ground ball shot.