I use 15 lb. power pro braid on abu garcia c3 and c4 reels for downrigger fishing for koke and trout, different releases work better with braid then others, we use the cannon releases that have a dial on them,( I have also used the cannon small clip type, that may hold better than the dial type but is larger and thus has more drag leading to more blowback), just set the line further back in the release and tighten down as much as is neccesary, usually smaller fish will not trip the release. I switched to braid on my downrigger but I don't think that's what you meant, but braid on a smaller manual downrigger has worked for us, just check carefully for nicks in the braid every so often,(or imm. if you hang up the line or weight) or that ball will just break off suddenly as that nick frays out.This goes for line on fishing reel as well, no good to lose a fish and the lure due to a previous nick fraying out. We won't go back to mono on out downrigger rods but be aware that for big fish you really have to use that drag as the non-stretch of braid is not forgiving when a big fish does something crazy close to the boat.Backing is a good idea as it takes a lot of braid to fill a reel compared to mono, but tensioning the backing AND braid when you spool it is imperitive as braid can dig in to a loosely spooled reel. Good luck,Bob R