I also tried a couple of G7s. Didn't like them at all. Clunky, not easy to use one-handed.
Still swear by the Kyser capo, and they don't make my guitar go out of tune up the neck.
The big sticky-out thing is the lever for opening it one-handed and placing on the neck or headstock of the guitar; it's pretty necessary and it's never gotten in the way of my playing.
Hey, if it's good enough for Segovia and Chet Atkins, it's good enough for me.

Seamus