Originally Posted by johngwheeler

That's an interesting report, and no-one could argue you haven't spent enough time testing your fit @17,000-20,000 miles!

What is your saddle set-back now with the zero setback post?

One reason I quite liked a more set-back position (c. 8cm setback - I'm 177cm tall with 87cm inseam) was exactly the "push forward and down" on the pedals that you describe. I found this keeps my position on the back of the saddle to prevent me from sliding forward onto the narrow part of the saddle.

How do you avoid this, or does it not bother you?

On my Fizik Antares saddle, there seems to be a very narrow range of positions where it is comfortable. If I slide forward more than about 1-2cm, then I would really suffer after 50 miles or so. Maybe it's saddle design and angle that's the cause of the problem? I moved my saddle forward 15mm (to a 6cm setback) and find I do have to shuffle back every so often , particularly if I take the pressure of my hands for a bit when riding on the flat.