Hardly any visible difference. The rock regulator is riding side-saddle. Aside from that everything is going on inside the frame. I may still be able to adjust the trigger to a shorter throw, but it is 100% walkable at this point.
I also put a Doc Nickle Mag/Cocker barrel adapter and a brass Palmer Cocker barrel on there, so it's fast AND accurate.
All in all I'm QUITE happy with the job.