I wouldn't say it takes two hands to use, not on the release, anyway. It does, however, require that you position it, and hold it
on center while your flipline is adjusted through.
If you're used to just pulling the tail through, forget it. This is where you use one hand to center the rocking cam, and the other to pull your flipline through.
I used mine for about 6 months, then had to bail on it. I kept looking for something I was missing. This piece has it's place in arboriclture, I'm fairly certain, but not on a flipline. A flipline is one-way lock, the other way release. There is no need to be clamping the flipline going both directions
Looks like I beat the tarnations out of it, but that's kinda normal for gear pieces. I do remember liking the swivel aspect of it.