So... It's been mentioned earlier in this thread, the possibility of putting the friction or brake beneath the climbing hitch. I'm sure others have toyed around with this idea but I think that this really has some merit.
It allows me to ascend my single rope without the brake applied, using my foot ascender and hitch or my pantin/second ascender and bungee/hitch combo and then install the brake (Revolver and large aluminum ring tied together with short leash so i don't drop the Al ring)at any point, no need to lanyard in. Since I am applying the brake beneath the hitch I can do so without first creating some slack in my system.
I climb with a rope bridge on my harness and a pulley attached permanently to it. I clip my hitch carabiner into this pulley, very easy twisting while limbwalking and reaching for that little deadwood at the end of the limb. When I'm ready to descend or limbwalk I instal the brake beneath my hitch, with the revolver attached directly to my rope bridge on my harness. The difference in position between the pulley (for the hitch) and the rope bridge (slightly lower than the pulley, for the brake) allows the space for the brake operate smoothly.
Returning from a limbwalk seems easier to me as it's a one step motion, the brake and the hitch both tend at the same time with one hand, surprisingly smooth.
When I'm ready to ascend again, if I have not planned my climb correctly, as has been mentioned, I can take out the brake, just by unclipping the revolver from the Al ring and because it's on a lease I cannot drop it! This is very handy.
It's not re-inventing the wheel, but it's just something I've found to be useful, if only for the fact that the brake can be installed without havig to first lanyard in, or at the very least find a branch to stand on in order to create a little slack in the system.
Just a note on friction hitches, if you have not yet used the Michoacan, spelling, do it, do it! Put an extra wrap on it for single rope, or not if you're a light-weight, you can use it with short legs, but you'll find that it grips the host line positively and with very little 'sit-back', which is all good for SRT, I think.
Oh, and thanks to you Treebing for your clever work with this, but also for sharing it with us all, this is one of the most exciting, thought-provoking threads on here, in my opinion.
Thanks, Russell.