What to avoid in a used H1?

[Buckeye Hummer]

R2, So far I've been able to get over everything I've encountered with the rear locker and BTMing the front, however, the day will come that I need it in a BAD WAY!
Also, a friend of mine has a front locker in his soft top and says he can't steer when engaged AT ALL. I know this isn't much of an issue but most of the obstacles I've had a little difficulty with required a turn of some sort. I plan to check on the front locker this week, I just want to be sure I do it right. Breakin' up is hard to do!

Sidenote: My MTR's look like Sh%t! I've ground through so much dry rock and steep slopes. I gotta take a pic and show you guys the carnage on these tires.

Damn, one more thing. I LOVE my rear E Locker. It's just incredible how effortlessly this thing works. What a great piece of engineering.