Doonz all the way. I have a set for my bone stock 800-s and ran them in little sahara, ok this spring. They were great. No loss in power only a mph or two on the top end. Got a great deal on them from Fullerton Sand Sports.
Are these 4ply doonz? I seen a set work a few weeks ago and wasnt impressed with the way they dug when starting out..i hate to say but i think the sand stars work the best for our low horsepower machines.also i dont think the doonz slide as well as the sand stars and i know the blasters don't slide at all!