I had a compact double on my Aegis Swift and a triple on my Bike Friday. After my pelvic fracture/surgery, it hurt to ride my Bike Friday but not my Aegis. I could never figure out exactly the difference because there were geometry differences (seat angle, etc.) as well, but q-factor was definitely a possibility. I am glad this thread came up as it reminded me of that.

I ended up selling the Aegis because I wasn't doing that kind of "go fast" riding after my accident, but in the end I regretted it as I would have liked to have had it to compare with my Friday years later to see if I still had pain only on the Friday. It may have been that years later even the Aegis would have caused me pain, but perhaps not.

I do think if I buy another road bike in the future I'll stick with a compact double and Speedplay pedals, just in case that makes a difference.