Originally Posted by N804RV
I think the swivel one, with the big rubber ring is completely unusable. I threw mine away in disgust.
I have one that looks like the one in your picture. It works great for me. No mods required!
I agree with this; I have never been able to get my swivel set to work well. Probably a technique or personal thing: it can't be that bad if some people can get it to work and swear by it.
But I love the Boeing style one, and can't stand the swivel type. Others feel the opposite.
It's funny--it's like when people ask for advice when they are just starting to get into competitive shooting. There is no one gun or tool that is best for everyone--the best is what works best for you!