Hey guys my 2010 Sportsman 800 still has the stock Carlisle AT 489s. I am ready to put some grip on my bike. I'm just not sure which direction to go. My Dad has a set of swamplites on a kodiak 400 and loves them. Where we ride, we ride on blacktop, gravel, hard pack, climbing (we have some sloppy hills we have to go up and down) and some mud. Mud isn't everywhere but when I find it, I want to doze through it. So I need some reliable grip that will last the longest from encountering pavement. I've looked at Outlaw MSTs, Swamplites, Reptiles, and GBC Spartacus. Also what size is right for stock wheels and no lift? I was thinking 26x9x12 for the front and 26x12x12 for the rear? Any and all advice on tires and sizes is greatly appreciated.