I think I ended up running -8 all the way, but I used the Summit brand push lock hose. It looks like a rubber hose on the outside, but my understanding is that it's basically a braided nylon hose with a rubber covering. It meets NHRA spec though, so that's all that mattered to me since I wanted to be able to do test and tune nights. Wasn't too bad on price, though by the time you get all the fittings and stuff any system adds up.
