The Flite series has always been their budget line. I like Flow, but their budget binders are not very durable. I'd go with the NXT line or move along to a different binder. There are plenty of other great options out there. Any particular reason you are set on Flow?
The easy access thing is really not that big of a deal. You are talking a few seconds more with a traditional strap binder, and sometimes less time depending on where you are trying to put the binder on.
Burton Avenger did a good write up on rear entry options out there. The Ride Contraband and K2 Auto Evars are other quick binders you could look into.
Well as with most gear, you get what you pay for. Check out the write up. You do have some options.
If you want a very durable binder, Rome 390's seem to be hard to beat. They are not hybrids, but sure take a beating. K2 has stepped up their binding game the last few years. Not sure about this years batch, but I have some Formulas from a couple of season ago that are a great ride.