Thank Evan,
I’m really just talking about the moments on land where a 5th can be tensioned a bit to keep the lofting to a min. We have some pretty treacherous entry/exit points and a pulling kite is no fun there. One bit of tension on a 5th and its all good. Doesn’t mean I want to opt for a rise, but it stands to reason that you should be able to shut down the “constant pull” on land.
Makes the occasional walk back up the beach a lot nicer.
I’m all in for the diablo and know what I’m getting (back) into. I’m just curious how the “compensator” works. Is this a mechanism or a fancy word for bungy? Hopefully its dead simple. I’m assuming the leash goes to the 5th. Fixed length is great and much preferred, but I’d still like the ability to tame the kite when on land. With a 5th line already there it seems a simple and safe function to preserve. Would be kinda silly to have a newly designed state of the art orange safety “Hub” at the bottom of a bar that neglects the inherent safety of tensioning a 5th line to tame a pulling beast.
Not trying to be pesky, or testy, just curious, and a wee bit bummed I wont get to try one on snow. Oh well just get em out by the time I head to Hatteras… Please 
My guess would be that the 5th comes down to the swivel and is held constant with the fronts by a stopper that will let the line slide when its pulled, then a bungeed section below that goes through the bar to the leash. But like I said, I’m often wrong.