I am also getting ready to pull the trigger on my rear locker. I already have ARB on-board air compressor and was leaning towards the ARB. Is anyone running a rear Harrop elocker on their rig? The pros would be no worries about leaky air lines, etc. The only con that I have seen on the Harrop is that it sporadically will disengage which is definitely not cool. I believe Harrop is fairly new to the US market so reviews are light. Any feedback would be appreciated. ARB air locker vs. Harrop elocker rear on a 2011 200.