Done and still not rising... Obviously as soon as you remove the pump the bladders let all the air out though 
You have to be pretty quick fingered 
Have you tried adjusting the sensor arm 
Disconnecting and raising the sensor arm to maximum, should see the sl top out, rise fully. What's happening is;
Raise arm.
Pump runs, continually.
The bladders inflate. Pump still running.
But the car stops rising beyond a cirtain point broadly similar to the normal ride height or doesn't rise at all above the natural level of the springs. Pump still running, and so on.
The car never rises.
Some air is being pumped, bit not enough.
Conclude, asthmatic/tired pump. Replace with a known good one.
Any thoughts?
Pump still running btw. 
Ah, if pump running, but no more uppy uppy, either:
Faulty shocks
No (more) air from pump
Air not getting to shocks
I was about to say the shocks are brand new, so not faulty. But...
When I cut the bands in the shocks they didn't extend. The bladders had had stuck to the shock body. Paint still wet on assembly sort of thing.
For the shocks to be faulty due to that issue, they would have to have torn the bladder material.
But LD tells me by phone, there are no leaks, not signified by any audible hissing at least.
If air was escaping there would be a hiss, and or, the bladders would deflate once the pump turned off. Depending on any one valves of course, if there are any?