Whether it's a Renegade or Outlander the mechanics of both machines are identical except for the suspension so I doubt whether there are mechanical glitches in the Renegade that don't exist in the Outlanders. I have an 06 Outlander(first production run) that experienced it's first mechanical problem which was a leaking valve cover gasket, personally I think the guy at the shop tweaked it because it started leaking the first time I used it after getting it out of the shop for it's service.
I'd argue that most mechanical problems are the result of poor maintenance and/or rough use of the machine. I'm not suggesting this is why you've had problems, sometimes mechanical devices just fail for no apparent reason.
FWIW rode my Outlander pretty hard when I first got it and even did a few races, the worst problem I've had is with flat tires.