Gnu's are shit. Flows aren't. I trash gear as I don't even pay wholesale for it and my Quattro's are fine. What actually broke on your Flows? Or was it just that they were popping open? If they were just popping, they probably weren't set up right or something is wrong with the lever, talk to Flow, they'll help.
If you just hate them now, you're best bet is gonna be Ride DVa's or Union Trilogy's. The Unions aren't the most responsive are greatest comfort, but Unions last.
That thing I do to escape the world and have fun with my friend