XRAY - Model racing cars

Whats the official status of using the one way on carpet (with foams)? I read something while back from rc mushroom about not doing this-even with metal outdrives.

Any hints to make the metal universals last longer? Or should I quit while Im ahead? Would a ball diff in the back help (slip)? I didnt think so because it slips after the diff gear, at which point the front diff is already engaged. This is why I still like the idea of a one way idler up front as another option (nudge-nudge) .

My universal broke at the pin connecting the the 2 drive elements. Its X Ray's. The spring steel outdrives held out well with even the abuse.

With more people opting for the brushless Mamba and Speed 300 motor with > 6 cells, spring steel universals maybe the way to go for M18.
Have never broken one in my Evo 2 even with 6 turn brushless motor. X Ray spring steel universal is as strong as it can get. For 1/10 & 1/8 anyway... for now.

With more demand maybe Mario can start on this later.

Mario, the outdrives arent the problem (I do have those BTW), as zracer has pointed out the universals themselves are breaking (the aluminum ones)! I know someone else who had the same problem.

Might pass this on to the engineers.