This is what is really catching my attention. On our cars, I notice that the OEM rubber bushing is getting smashed & beat up on the ends where it is pinched to the subframe.While load torque the arms (what causes the migration of the stock units), our bushings are 2 pc on each pivot location, with a floating pin in the center. Allows the bushing to work more like a bearing in the pivoting direction, but less prone tolerance shift over time.
Do you have any pics of when you did the install?Buying a uniformly sized set of control arm bushing for an Elise/Exige would be a BIG mistake. I machined a set for my own car and EVERY ONE of them needed to be a different size. Why? Because the tolerances on the fabricated control arms are so sloppy! Lotus just put a Band-aid on the problem by using rubber.
And yes I machined the central metallic spacers from 7075 Aluminum because of its high Brinnell hardness, and then had them hard anodized. They were all over the map in length too! Saved some weight in the process, and now all of the control arms move up and down freely under their own weight.
This ended up being a VERY time consuming piece of work!