it works good for folks that are not really comfortable or are novices at wheeling.
ROFL. Could be. I have seen guys like SCSL take obstacles with CDL/ETC that D1 dudes that were locked up in the rear (arb) couldn't take. Clearence/suspension and driving skill can go a long way with CDL/ETC and no lockers. That being said, I am not saying that just to kick you in the nuts - lockers on top of those things are a great boon - but ETC with no CDL is not good for a novice wheeler. Look at what happens when you try to back down (or for that matter) climb a slippery steep grade with ETC - the brakes lock automatically and try to make the truck go sideways (ie, roll down the hill). Not great for the novice, and scary for the experienced 4 wheeler.
Mine engages when the t-case control is moved left.
You have CDL then. Your lever wouldn't do that if you didn't.
I guess the answer is add the CDL shifter, and go out and try it for a while. If I get advanced enough where the ETC isn't cutting it, then I'll add lockers.
Like I said, things have to get pretty nuts for this to happen (providing your truck is lifted enough). 2" of lift and lockers simply doesn't cut it. As I've said, you can put lockers on a subaru justy, and it still won't do $hit. Make sure you are tall enough and have enough flex before you lock. People say you can "winch over things" if you get stuck, but at least here in Colorado, the only product of this is body damage and all sorts of broken components underneath. After CDL and ETC, think about more lift and perhaps working on driving skill (ie, bill burke course and going every weekend with your group, like Solihull does) before you blow the big coin on some lockers.