I have been following this thread with great interest.
Have refrained from comment because, to quote Austin Powers " Suspension aint my bag baby "
Having read your progress, it certainly seems like the problem may lie with an upright.
If you are up to stripping them again, might be worth puting them on a flat, level surface & having a good measure up.
You may find that simply shimming the hub carriers you will able to get the settings required.
I hate it when I come accross problems but am really pleased when I manage to solve them.
Hope you get it sorted soon
