Different chassis but the comfort seat on the 900t enduro is a softer seat than the other 900 models so maybe an earlier 1200 enduro seat might help you out. Just trying to give you an avenue to check out for a softer seat.
Check with Seat Concepts. I have one of their seats on my Off road Bike and love it. Of course if you ordered now you probably won't see it until late winter, they are backed up like most places