The locker will only lock while under load. If you maintain or let off the throttle, or push in the clutch, it unloads and allows the wheels to have different speeds. It basically acts like a ratchet and will let the outside wheel speed up in turns so you are not fighting the turn. Hit the throttle in the turn, and it loads up and locks the axle so the inner tire is forced to try and turn faster than it normally would. One of w things will happen, either the grip will be high enough that the truck will plow straight in a turn, or the inside tire will break traction and either make a lot of chirping/squalling, and or snap the back end out when the outside tire breaks free as well. One reason I disliked daily driving my truck on snowy city roads. Other reason was I just knew some idiot without insurance would hit me.
With a manual transmission, you will find the LockRight pretty easy to live with in all reality. Just a bit of a learning process, then you won't really think of it, but will love the extra traction until you find that a locker like 4wd is great at getting stuck deeper. But then again, getting stuck is part of the fun. At least for me it is, it adds interest and knowledge. We tend to learn more from our mistakes than when coasting after all.