After I cleaned all the mud/water/dirt/sand off the hull and tracks, cracked opened the Leopard and there is nothing, not a grain of anything inside the hull. The only danger is debris on the inner upper hull that covers the tracks, you have to clean as much as possible dirt from there or it could fall into the lower hull and into the motors. Tamiya should have used a lower hull which overhangs the tracks instead of the straight edge hull.

calvinwill