I usually run 30" tires when the tracks are not on, whether it be the stock Xmr tires or a set of street tires. I would say it will put more stress on your CV joints, but nothing they can't handle.
Another route you could take, if you have the budget, is buying all new shocks. That will give you a little lift and greatly improve the ride, but you'll be out about $2,500US...