I agree with both Dubster and Markster. The first time I went to Moab I was basically stock, with 245 R70/16 BFG A/Ts. I did Elephant Hill with everyone on Tuesday with no problems. I did scrape underneath probably 3 or 4 times, but no body damage or anything. True, it would have been better for me to have some sort of underbelly protection, but seriously, like Mark said, its all about picking the right lines. Having a good spotter also helps a lot. I did not go on any of the harder runs back in 2007, but in 2008 I can back ready. I think could still use some skid plates though.
Bart