I did play last night. For the first time, I tried using the 2-hand backhand for a full two sets, no cheating.
My best shot was, guess it, the backhand... I still got creamed cause the rest of my game is falling apart, but that's another story. Three things I really, really appreciated with the 2-hander: First, the short preparation I needed to make the stroke. So simple, almost nothing to think about. Second, after the hit I was already positioned for the next one. No additional steps to take for recovery. Third, I didn't feel ''exhausted'' after a backhand rally (5-6 shots).
All these must have something to do with my faulty one-hander technique, but the two-hander seems so much ''simpler'' in every way, I believe I have no choice but to pursue in that direction. It's just more fun playing that way.
So now, it's serious: I WILL PLAY THE REST OF THE SUMMER WITH TWO HANDS. I'll start a new thread a month from now (linking to this one) with more vids of how I'm doing, and if possible a vid of a match.
This being said, I came across this clip from Jeff Salzenstein:
http://www.youtube.com/watch?v=FcxbGUIewH8 that does make a lot of sense, since I tend to put too much topspin sometimes and the result is a ball going long because of the high trajectory.