I would think this has been addressed before but if so I can't find the thread: I have two 686's, a no-dash six shot, and a -8 Plus model. The earlier one had a very nice trigger job and has those great target stocks, so the thought occurred to me to change the six-shot to a seven-shot (and vice versa). The frame and cylinder diameter measurements are identical as far as I can tell. Has anyone actually attempted this? Can it be done by swapping the cylinder and the hand? Do you even need to change the hand? Thanks, Z