a few problems with carrying a spare cylinder are well, the bullets can slip out if it isnt retained well in your pocket, its sort of heavy, and alittle bulky and it can take some time to get that first cylinder out. 6 shots is plenty enough for what anybody is probably going to face, and even people with high cap wonder 9's run out of time before they even get off more then 3 shots, and typicly if its more then 3 shots down range they just unload the clip and miss, miss miss. Lots of folks will say oh thats too slow to shoot reload draw, but they are just as fast to draw, and faster to deliver that first shot then most any other gun, cause most people tote the grip to be the most "natural" of all pistols. I prefer the blackhawks grip myself, but thats just me. There are guys out there that will amaze and astonish you with what they can do with a single action, it just matters how coordinated you are, and how much time you have.