Gremlins? The wrost gremlin of all, a cable that cant route in small spaces, takes forever (if even then) to get adjusted, it goes out of adjustment, the shifter is a PITA to get mounted at times, and if you dont remove the spring from it it wont engauge fully, and then as for the strongest cover, thats questionable. How can you get stronger then a A50 plate in 1/4"? Not to mention you have a cable routed thru it with a jam nut that if you hit on ANYTHING will destroy the cover and cable.
I would do a 1000 true tracs over one Ox, and 1000 air lockers over either.
Well I read the instructions, set it properly, added some locktite for insurance and haven't had to touch it in almost 2 years? If anything ever happened to the shifter, cable etc you also have the option to manually lock the OX to get you home.
A50 is good material if all you're looking to do is fight with someone. Of course you have to buy that in addition to your truetrac, etc.
http://www.jpmagazine.com/techarticles/drivetrain/154_0708_bulletproof_test/viewall.html