There are a couple of places to check things out. 1st narrow it down. 2nd.... go to DT and then HCS AC section and just about every issue ( and even some NON issues that may be come issue's ) will be nit picked to death....LOL
Then go with what you think is best.
On the DOO's I have done an S mod / E mod change..... not too much fun when the snow is flying.
With the new Cats... it is yet to be seen what exactly happens with the new chassis and the rigorous test/ crash/smash worthyness... The snow was Lack Luster last winter and not a lot of riding was done ... for the most part. I'm not convinced that if & when I miss a corner and take out a tree that my front HOOD isn't going to be totalled. ( Just saying )
I'm a fan of the small 600 TNT Doo, but it doesn't have the legs in the stretch... only drawback for me.
If I was to get new doo... I would order an X , that has to be snowchecked. JIMO
For what it's worth, I'm a rock magnet, if there is a rock out in that field.... I will surely find it with my sled. Oh... other things come to mind..... tree stumps, old matress's that the UPers like to throw out, drainage pipes, ect.....