We will be testing our '12 163 once we get snow. Keep in mind there are significant changes from '11- '12. Different track, different clutching, MUCH lower gearing, new ECU mapping, maybe a new belt. It's impossible to say what will work and what will not.
I am excited about the direction they have gone with clutching! Looks like a much more mountain oriented setup with the elimination of the reverse angle helix....this is a good thing IMO!
I think it will work very good out of the box, so Doo is making my job harder and harder every year. We will be trying to address any weaknesses in the clutching....what those are remains to be seen without seat time in a variety of conditions.
First thing you should look for is getting the correct RPM on clicker #3-4, which is done with a pin weight change. The sled will act wierd as it progresses through break-in so don't make any judgements until it has completed the break-in period which was close to 400 miles on the '11's.