Blandin,
Many people will end up with sore backs and achy necks from flipping to early. I also, firmly believe in paying to have a fitting done. Most of the trained professionals setup riders in a more upright position due to physical attributes and physical fitness. I am one of those right now and maybe forever.
However, I do believe there are people that benefit from having a more aero stance that the negative angle presents, but that is a small portion of the riders on these forums.
Johnny, thanks for putting that into technical words. I envy those who can ride with a flat back. I currently ride with an arched back.
For that, I have been put on a training regimen of riding with one finger of each hand on the hoods to strenghten my back and abs. Try that.
Also I have incorporated 50 crutches every other day to help in this effort. All in my quest to race next year. Things we will do to ourselves.
Do I need to turn in my OCP card?