I run 4-0-4 on a 850xcr and i've had no issues. The rationale for this setup is that there's less lateral grip (sideways) so you can still kick the tail out. YMMV.
Just about finished today the Strathroy club trail that was to be closed this year that went to Mt Brydges. What I dont understand with a lot of these complaints is that the MOU's do not have an expiry date. So unless the landowner has changed something, all that should be required to put a trail back in is to do the phone call making sure the club could continue with trails on their land. I made my calls this morning, and was putting them in this afternoon