I've been through some pretty deep and thick mud with mine and it works awesome. I was with a 93 Kodiak with mud tires. Not sure what there called but there a monster of a tire. Look like monster truck tires. Anyways, I followed him in a marsh and either of us got stuck. I will be taking pics this spring of some good mud riding so keep your eyes peeled! Check out the link on my new site with some recent pics..

 

The Wolverine is a great choice and super reliable I never had a problem with mine really. It went anywhere although it was quite hard to handle as I had swampers all round and a locked front end.I now have the 500 scrambler it has the 2wheel to 4wheel option and for a sport 4x4 there is nothing close to it .I do some distance riding and camping so I put the racks which carry alot of stuff.If you do sport 4x4 riding then take a test on a Scrambler. Im hoping yamaha builds some competion though , something involving the raptor motor would be nice.
Matt
2000 500 Scrambler.