I just got new Tusk Terrabites mounted on my stock deluxe wheels, haven't even put them back on the machine yet. But after getting them home, I thought I should check the PSI, and the tire shop sent them out at 30 psi. Seems like that would feel like running around on solid rubber tires. What is everyone else running? I dropped them down to 10 psi, but I won't even be back to my Pioneer until tomorrow to install them.