So...I've read seemingly thousands of threads saying it's not worth the effort. The buzzword is "reinforcement" and the argument is that those with carriers have it, and those without don't. But where's the proof?   I think somewhere along the lines, retrofitting a WD21 carrier to another WD21 blurred into some bastard spin-off for an R50. We've seen the carnage that was done on that one guy's WD21 to make it work...and in that case, yeah, I probably would just but another WD21 with one if