I have done a little bit of testing over the weekend. I did angle my saddle nose down just slightly. Using the method mentioned by
79pmooney I loosened the rear bolt until the rails were loose, I tightened the front bolt by a half turn, and then re-tightened the rear bolt. That does seem to have helped, though I haven't been able to really test my endurance with this yet.
I do think my seat height is pretty close, though I certainly recognize that here, too, small changes likely have big impacts. I seem to straddle a fine line between "too low" (where I really feel it in my knees) and "too high" (where I have that feeling of a loss of motion control in the blog to which
phughes linked). I think I'm too cavalier with the
size of adjustments (too large at a time) and I probably need to tune things in smaller increments and iterate with that (and change just one variable at a time).