Medium fast 7 weight or fast action six weight. My go to rods were a 7 DS2 and a 6 XP....but I downgraded to one rod and now use a 691-4 TCR and I'm still experimenting with floaters but the SA Streamer Express 250 is a nice fit for a subsurface line/fly. If I had to choose a rod that covers what you ask for I might think a 9.5 footer in fast action...that action will be slowed down a smear by the extra 6 inches......A strong 6 weight in 9'6" will cover most summer salmon, summer steelhead, and sw fish. Your set-up (5 wt. and 8 wt.) seem pretty damn good to handle most situations, but as always some rods feel better than others, some in your hands will cast farther, some you don't like feel better after casting lessons, it's a funny thing.