well snow is fun to ride in. If you have rocky trails the snow smooths everything out. Donuts!!! Not like it's hard to slide the rear end around on a blaster to start with, but the snow makes it even easier.
Not that it's really legal or even a good idea but in MS and HS my friends and I used to tool around town when it was snowing, even blast right downtown past the police station in the snow....they can't catch you!! We used to drive towns and towns away, just on the roads....none of our quads were registered or any of that such nonsense!! Again, I'm not recommending that you do this, in most areas it's probably not exactly legal (although it's a ton of fun!!).
I'm a huge fan of going really fast on a straight away and then locking up the tires around a corner and slamming into a snow bank sideways!! It's just snow...Then you get off and pull the quad out and do it all over again!
Oh yeah, hole shots (and other holeshot-like treads) don't do so well in the snow. The stock tires aren't too bad in the snow. Tires like realtors and such rock in the snow!! Not sure how well a blaster would do but getting a rope, tieing one end to the back of the quad and tying a stick to the other end (or you can get fancy, take a length of rope and tie it to both ends of the stick and make a thing like a waterski rope, and pull some friends behind you on a sled or tube...that's a freakin blast!! Not such a good idea in tight trails though...