Anyone have problems with keystone clamps?

[Warhawkfight34]

Well I used them on my car and so far they have not held on my fuel system.
I was pissing fuel all over the place from the hose to the vapor separator, piss me off!
Once again I am switching to conventional 1/4" hose clamps. I don't trust keystones
anymore!!

Just had to VENT!!!

[ws27]

I had the same problem on the red car and switched to regular clamps before I even got the car on the road. They do make really nice fuel line clamps that don't have the slots to cut the hose.