Yep, zombied another thread.
Having recently bought an Uberti Cattleman (1873 peacemaker clone) I have become interested in cowboy fast draw. I went ahead and ordered a spring kit, slicked up the internals, and tuned the timing and lockup. Next up is to have my buddy make me a competition legal holster and order the shells for wax bullet shooting and I'll be ready to start.
Steven, If you'd like to set up your uberti, I can turn you on to some great information. I don't have the knowledge to set em up for fanning (SUPER hard on guns) but thumbing is no problem. My gun is now set up to be faster than I'll ever be, and I put less than $60 into it. Once my holster is done, everything will depend on me honing my reaction times and learning to shoot semi accurately from the hip at speed.