I have both Mohawks and sand stars dual ribs. Anything like dune runners or sand stars are gonna weigh a ton, Mohawks are an awesome LIGHT tire but if you want rail type cornering then get yourself some dune runners or sand stars.
I guess all I can say is ask the big guys at the tracks, last track I was at most everyone (including penton) was running PVLs. That has to say something IMO.
Why are you running race gas? If I was getting a new crank I'd upgrade to a larger stroke, your gonna do it sooner or later. If it were me I'd have it rebuilt if I was staying stock stroke.
If it makes you feel any better Cody, except for that wash dragging (a couple passes), I haven't had my bike in the sand since Feb! Name of the game. When you finally get to use it there's nothing like it!