I've been browsing through the erevo, max, and summit forums, and have seen a few people mention using stock plastic shafts like a fuse, either at the center or the corners. I'm guessing it's cheaper and easier to replace a plastic shaft at around ten bucks than a 25 $ differential. I'm trying to find an alternative to 250$ differential upgrades, and this is looking like a good alternative. Does anybody use this technique? And how effective is it? It would be super easy to keep a few extra drive shafts on hand and just swap it out when one pops.