Yes. And this is all good and that.
And I would not argue this.
But you haven't been listening.
It would not do this. If you put it in high mode and lets say for arguments sake I put blocks in. The values for the height sensors would have to go below the permitted values to allow the vehicle to sit level. My hunch is it needed new height sensors. But I do not know this for sure. But for each height setting there is a min/max value you have on each sensor. When you are on the lowest value permitted and it is still 3" too high, you can't realistically lower it any further....
Height sensors are between £45-70/each. So a set of four is not cheap.
Add in a set of new air bags too and you have massively exceeded the cost of a coil conversion kit
AND don't forget the initial problem I had, was that it ruptured the airline to the tank. Something nobody has been able to even suggest a cause of. And it wasn't a one off, as it did it again with new piping and different routing. The last straw was while sitting in it programming the levels, it then threw a wobbly with something on the dash about an ECU fault and the RWS software presented me with this:
However before this happened. If you adjusted the suspension through the software to set a height and store it. When you set the vehicle to that mode, it would not move to the saved positions, even though it would confirm they were saved.
Now it may well have been easy to fix. But it was beyond me. And I didn't have £100's to spend at a garage getting it diagnosed.
If you have any genuine insights to causes and solutions to these specific problems. Then I would honestly be interested. But it wasn't a simple case of a leaky valve block, non functioning compressor or worn air springs causing any of these problems.