I'm just catching up with this thread, so forgive me for being late to the party!

I definitely sit "on the rivet" while TT'ing. I ride a Fizik Arione saddle, and have to point the nose WAY down to be able to do this, but find that it works for me to get the power that I need. Apparently, given my past couple of weeks of TT results, it works.

Eden - thanks for the description on the disc wheels. Apparently I have a new pair of Zipps coming my way (I guess I have been a good girl ), and I will be anxious to compare them to the Ksyriums I am using now.

SheFly