I am going to be buying my 06 WR450 soon, and want to start off with the right parts....mainly tires, considering the soft Florida terrain. What do you guys recommend for tires in sandy conditions? Every tire company has a soft terrain tire, but not all of them have a selection of 18" sizes. I've been eyeballing Maxxis SUR Cross, Dunlop D773, and Pirelli MT44 (from experiences on my old KX500). Any one of these, or any others worth considering? How are the stockers in soft terrain? (739s I think, right?) Thanks!!