I've had a 17 since the early '70's. And have my dads 53 with inserts but no extra cylinder. The inserts are a bit of a pain but it's one that does well with LR ammo. I'd really like to find a LR cylinder cheap but I just don't worry about the extra effort. My 17 is a pain, tight chambers, so some ammo is hard to load and to empty. So sometimes "it's all how you look at it" . Some LR's actually do better in the 53 than the 17... that isn't supposed to be possible??? I really enjoy the 53 because it was the first pistol I ever shot. Also, it was dad's gun. I've shot the 17 so much, I think I could qualify blindfolded, maybe, anyway...