I weigh 210 and have been riding 50lbs on my 10 SG, since the OL weighs as much. But now that she's got her own (11 Deluxe) I might bring it down to 35 and see if it handles nicer...
'09 and up bikes can be filled to 50psi; the older bikes have a much lower limit. I think its around 25lbs but you should check in the owners manual to be sure. I know that the older bikes don't take 50lbs like the newer bikes.