Often I use an ascender, pantin, my regular hitch/pulley combo. You make your progression the same motion as you would footlocking, not like a frog system. The hitch just floats on my ring to serve as a backup to the ascender, so it's already installed on the line, and to use at the changeover.
I use my lanyard as an adjustable tether for the ascender. When I reach my TIP the only thing I have extra for the rest of the climb is an ascender and the locking carabiner it is attached to. If you use a basic ascender, which I do sometimes, you won't even know it's there.
To change over at the tie in point I step up in the pantin and weight my friction hitch. Then unclip the lanyard from the ascender an put it around a limb or the TIP. Stow your ascender, set up your cambium saver and go.
I would like to try a rope wrench though...