I have the smaller 26 lb lipper gripper. Bigger than a boga and doesn't spin as freely but it locks open, you don't lose depth in the jaw when it opens and it has a quick release button.......then it can't open until you open it. I think I like it better than athe boga and it's cheaper.
Got it direct from their website, it was only like $40.....don't know if they're still doing that.