check ebay out, search for RJ Ride. I've been running thier super nitro tires this year G35 compound for hot weather. they hook up very nice on unsealed asphalt. I've tried foams but they just didnt handle the way i liked and ultimate grip just wasn't there. the nice thing about foam tires is, that as they wear they compensate for minute faults in your alignment. so if camber is off slightly, they will actually wear till the contact patch is correct. while this isnt the right way to do things, it is effective. also if you decide to try foams remember to use about a 5 shore rating softer in the rear than the front. as for the rj rides, I've been buying them up every time i see them on, at 20/shipped for all 4 tires. when i pay 60+ for the kyosho equivalent in the hobby shop. they can't be beat. they grip just as well if not better than the kyoshos and wear is just a little shorter. good luck with whatever you try. id try them all if i were you, just for experiences sake.