I hear ya about the wrist pain B! 15 mph on a Shockwave, with my preferred brake setting, was wrecking my wrists within an hour. But for me, it was because of using lots of brake and trying to fly in reverse. Reverse flight is amazing on the Shockwave, but in 15 mph (average) winds it was taking some force against the handles to get it to go, no matter how much brake I dialed in.
And about the sensitivity of the speed series Revs to leader adjustments.... I was landing the Shockwave every 10 minutes or so and trying something different, and because of my predisposition to the 1.5 size Revs, nothing felt "right" for almost an hour!
On another note: If you have a line set that you consistently fly on a different Rev (i.e 1.5, B2, Zen), and if you like the way these lines are wearing, DO NOT put it on a speed series Rev!!! Well, ok you can.... I did and it stretched out my top lines
soooooo much - we're talking like 5 inches here!!

I put the lines on my B next day for some light wind flying, with my usual leader setting, and....... Well, lets just say I spent another hour messing with leader settings, and 20 minutes beyond that on line maintenance (re-equalizing and stretching). When I finally go to buy a Supersonic or Shockwave, I'm going to dedicate a line set to it to be used by no other kite.