I have recently started bringing my "Very Tame" Pit Bull along on hikes. He loves coming out with me.. I have looked into dog pull events, and have seen that an average pit bull can pull well over 500 lbs with no real effort, wheels on smooth ground, of course... I may now have to buy a pulling harness and see what I can come up with.. I do a lot of rock hunting, If he can pull water and some of my finds then we may have a winner here...