I've been using the Mastery Striper int. line (surf model) one size up on my Orvis TLS single hand 9#with amazing success. Shoots just fine and does not overload then rod. No noodling during hot weather on the deck. When it's really hot ,I strip it into a bucket of fresh sea water now and then to cool it down. I am buying an Outbound to try next in both floating and intermediate if they are still available.
So many places to fish.. friends to make.......so little time.