Well, I've been off the trails for 6 months, but I'm now back in business, with some new upgrades.
The reign now has Juicy 7s, with braided goodridge hose (so good!) and ceramic pads, X0 shifter, X9 derailleur, matchmakers both sides and orange grips, ooooooooh.
I now run propedal off most of the time. It doesn't make much difference to efficiency on rough tracks, and it's muuuuuuch more comfortable when sitting down pedalling over rocks.