I just checked my RR and 3 months later the rear mesh is still near perfect (probably 0.2mm of movement) and all gears and bearings were in great condition a few weeks ago during a big pull down. It's had a lot of running with probably 10-15 3S runs with the rest being 2S simply to give the Yeti a fighting chance.
I think getting everything shimmed is probably half of it though that MC third member looks awesome (very beefy and solid). I'm honestly not sure if the whole VP axle housing is needed as it's not like the BR or RR is breaking axles. The front bulkhead/gearbox housing is needed as it's a pain to get to and I wouldn't personally want to replace gears and bearings there every few months. That and the SSD or MC third member and you'd probably call the above issues sorted and the truck likely would be seriously tough overall after that.