Yes that is also part of the problem. The thought had occurred to me that an easy way of adjusting ride height could be made by a machine shop making the bottom spring platform adjustable, just by removing the platform and machining some grooves around its' base and using a circlip in it, then using a movable platform resting on the circlip. [I can't take credit for this idea BTW, it's been used on Caterham Sevens for years]. Of course, it would then be on the short side and could bottom out, but everything is a compromise, and this would be a relatively inexpensive way of lowering the ride height to experiment.
This still doesn't address the problems of the tie rods being a different length to the wishbones, so they pivot in a different arc, so causing the toe to change when the wishbones go up and down, or of the leverage caused by too much offset of the wheels.
