I hope that your friend get things worked out ok.
I am not saying that it's not possible (I haven't looked into the ES) or that I couldn't figure it out. These are just things that I think about with this kind of stuff.
Carl
This was my thought too. Unfortunately, I was born and raised poor, lived most of my life poor, started doing pretty well for once about 8 years ago and then got in an accident on my '05 a little over 5 years ago and have been poor ever sense. So with that, before I buy things, I always look at Quality, Longevity, Time, Money, and ability to be able to fix things myself. (One reason for buying the FJR before I even test rode one). I really like the option of playing with the electronic suspension, but what price do you pay extra for parts and ability to rebuild on your own? Then lets say one grows tired of all the electronic suspension stuff during rebuilds and says "Screw it, I'm having GP build my forks and buying an Ohlins!" Are you now left with blinking lights on your dash from unplugged electronic suspension parts? Will it cause other problems? I have no clue...What's the cost of a non-ES shock? $485 or so? Installation? Easy-peasy. This is an example of why I remain leery of "state-of-the-art" technology and engineering. $3,300 for a shock replacement is simply outrageous (unless its BMW). Why has a '14 shock started leaking? Why isn't Yamaha stepping up to fix this? Even if it's out of warranty by a few days or weeks, a $3,300 failure ought to be remedied.
I am not saying that it's not possible (I haven't looked into the ES) or that I couldn't figure it out. These are just things that I think about with this kind of stuff.
Carl