Originally Posted by
Phatman
I think that if you shorten the stem, I'd accompany that with a rearward movement of your seat to shift the weight back a bit, though I'll bet the wattage increase is due to the more open hip angle. Have you tried the Steve Hogg method of taking your hands off the bars while you're in your normal riding position? Do you fall forward?
Saddle position should be set based on crank length, leg length and BB. It should not be used to adjust reach.