[Mulletbird]

Mudding is definitely fun. Now, as far as 4Lo, I've only used it once (on solid ice, and I just couldn't move without low). I've heard if you don't use it, you will lose it, so I just occasionally (every 2-3 months) shift into 4lo, let it engage the electrical side, and then back to 2h or 4h. However, it is there for when you get stuck in 4H, which with the looks of those tires, you could do rather easily. Personally, I'd go get a beefier tire if I were you (even my street cooper discoverer ATR tires are a bit beefier than it looks like your tires are, the SST's are real nice) - something with deeper treads to help give you some bite. Nothing wild like Mickey Thompson or Super Swampers, but yeah.