My problem with the snails was that I had to pull the right one clear out past the post that it indexes, to turn it. That meant I had to really loosen up the nuts or remove them from the axle. Everything at that point was kinda flopping around. I don't what it was about that snail, but I did the best thing I could. get rid of the damn thing. On most bikes I've had I liked the snail. This one was by far the worst!
On the other hand, most of the bikes I had had the snail on the swing arm pivot and that works out much better than having to loosen the axle and brake and all the rest of the crap. The chain and wheel stayed aligned. It was a far better system.
Bare