Rocks are fun, and this pile we ran the tires on showed the R/Ts were up to the test. Slow speed crawling is an art, where slippage is not acceptable. The proper combination of torque input to the tires allowed the improved rubber compound to grip instead of slip. Throttling up also made for noise, smoke, and forward motion! Note that at 10 psi the tread wrapped around the rocks well. We could have gone lower pressure, but it wasn’t necessary.