Derek--Interesting about the bead lock on the Vampires. I haven't had the problem and haven't run them in the cold yet, but will soon. I don't known if the regular Vampires have the same bead lock ast the ASXs. Might be different. I run the ASXs at 0 to 2.5PSI and don't have much of a choice beyond that. Any pressure over that and the first two tires will rub. Where stock avenger tires regularly break beads unless at 10+PSI, rocks, etc., the ASX Vampires have held. It's the same setup MightyMax, Mike and a few others have run on their Max IVs: Vampire ASXs on Max Kawasaki rims. To my knowledge, no ones managed to unseat the setup yet, swamps and all. Tearing when mounting may be the issue--they are a bear to get on there. Either way, I'll carry the spare in the winter and post if I run into the issue.
Let me know if you want to delete the governor. I cnc'd some extra arms and plates, spring shims, etc. and could use another tester. Rev limiter is a non-issue... the camming keeps the rpm from going anywhere over about 4250. It just can't breath with less than a 1/4 inch of valve lift. Why they even use a governor mechanism on a vehicle (versus a genset, etc.) is beyond me.