Planning on buying a set of black 15" Motorsports Alloy M12 wheels for my rzr, however not sure which tires I should buy... I ride mostly in the sand however and on hard pack dirt and rock from time to time. Would just buy a set off paddles for the rzr but the wife doesn't like how you can't get the backend to break loose like you can with knobbed tires. And I'd rather just have one set of wheels anyways do I don't to switch wheels/tires all the time. So which knobby tires preform the best in sand. I have a 2011 RZR XP and am pretty happy with the stock tires, thinking that a deeper tread pattern might be better for what im doing tho... Anyone got any suggestions??