The scorpions I have seen and from talking to marc are a lot easier to get working. A little more forgiving than the redemption on the 900 maxxis. And don't have to wipe tires quite as hard to get the kart into the track. He made some very positive improvements overall in my opinion. I loved my redemptions buggy and flatkart but I am very anxious and eager to get on a scorpion for sure.