Volcano...good eye on the Klim jacket. Got them for both kids and hope they don't outgrow them for 2 seasons.
They are definitely digging their sleds. The only performance mods would be the deeper lug track and upgraded skis, so about $800. The rest of the work is just cosmetic to make them look better than factory and custom. I think I have less than $400 into everything else on the sled (bumper, windshield, graphics, handguards, tunnel bag, axle kit). I also sold the stock tracks and some miscellaneous stuff at our local snow show to offset some of the expenses.