mate, it should handle better now it has a lot more more width ,maybe larger turning circle but nothing abit of power oversteer cant sort...ive been to a few msuk bashes at mansfield dessert. everytime i leave i say the same thing ' never ,ever again!! no way..have to strip the whole thing and the poop gets everywhere,like you said in the bearings which is a pain. the sand is very coarse and gritty, not like the soft sand in the dunes abroad.
mate you want to get some of those ski's for the front lol. they might even help with the wheelying because the rear part of the ski will touch the ground when the front end comes up....
thats it mate, ski paddles, dice, boost bottles, disco lights and a 12 inch sub... , nah just fookin about mate, i wouldnt run your bug on sand,its a right mess after and becuause you have all the extra toys like the ecu and that ,your servo plate area is full,imagine all that covered in sand.