What is the easiest way to remove shock from FI bikes?

Swapping the shock has always been straight forward on my carburetor equipped bikes, but the latest FI bikes pose a few annoying extra tasks to get the shock out. On my '14 KX250F, it becomes an issue when removing the airboot out of the way. The fuel line to the second fuel injector housed in the airboot has such little slack that you're forced to disconnect the fuel line from the injector in order to get the airboot out of the way. On the KX250F, the injector and fuel line are connected by a push type, quick disconnect fitting. Turns out, this quick disconnect is really not that easy to remove. It becomes worse when trying to install the fuel line back to the injector. Because there is no slack in the line and the injector is fixed into the airbox, it was really difficult to get the fitting fully seated. I ended up removing the injector from the boot which made it easier to push into the fuel line. And then once the fitting was fully seated, I installed the injector with line connected back into the boot. Even this method was painstaking and exposed the injector to dirt.

a) Is there any trick to fitting the fuel line to the injector on this model? I looked at a few youtube videos (usually being performed on autos) and it appeared much easier.

b) I'm often swapping shocks (I have two for testing) Is there another way to remove the shock that does not require removing the airboot/subframe? I was thinking you could remove the linkage and drop the shock down through the swingarm. Does anyone know a better way?