[MizunoJoe]

Since Yoda hasn't jumped in yet, here's my take. Overlapping the accumulators and the increased thrust gives the advantage of better separation velocity. Sequencing gives the advantage of better Impact velo. Now the ball gets 70% of Impact velo, but 100% of separation velo. It's also a fact that the best possible separation velo is 80% of Impact velo. So let's look at Hank Kuehne's numbers - 127 mph Impact speed and 183 mph ball speed. The ball gets 70% of the Impact velo = 89 mph, so the separation speed is 183-89=94 mph. That's 74% of the Impact speed, so that's not bad since the max possible would be 80% of 127 = 102 mph. But let's assume that someone has an Impact speed of "only" 120 mph. If he could get the max separation speed of 80% of 120 = 96 mph, that would give him a ball speed of 70% of 120 = 84 + 96 = 180, which is only 3 mph less than Hank.

Moral of the story is that even if you can't match someone's swing speed, you might be able to stay up with him by maximizing separation velo, and one step toward that is overlapping accumulators.