Could you give more details about how you combined these? I'm aware of both of these tools, but wasn't sure how they could be used together. At the moment I heavily use mosh which is pretty much perfect aside from the fact that it kills my local scrollback history.
Well tmux gives you back some scrollback (when you remember the key combination). I was doing linux sysadmin style work on remote cellular networks so mosh was great for the occasional dropouts. Also tmux gives you an extra layer of persistence and window organisation.