I have simplified my airbag system, hopefully getting rid of the remote-control valve will enable it to hold height. I put an air outlet alongside the two schraeder valve fittings in a position where I can easily manage both springs.
Attachment 193087Attachment 193088
Found the receipt for this thing amongst my stock of air fittings. Sooo many better ways I could have spent $500. I might see if I can rig up a way to bench test it and confirm it is the source of the leak, but when both bags settle overnight at the same rate, it's almost a written confession.
Attachment 193089
