Emily- I think given my size and ability to really mash on a pedal I would have the same problem.

I rode for the first time today on my mountain bike with the Candy pedals and I really like them. My LBS doesn't have the Quattros, so I am going to see if they can order them. They used to have them in stock and I want to have them put them on so the fit isn't all out of whack. I just need to go in and talk to the owner (he fitted me).

If the Quattros don't work, I will probably sell them and try the Speedplay Light Action pedals. Of course the LBS would have to order those as well.