Thomas,
after 300 miles with the Suplex front end I'd support your analysis, other than the "road bumps - no longer a distraction" comment. Sharp ridges and sharp edged potholes are still well worth avoiding.
I'd add that the steering is now lighter above 2 mph, it needs no more effort than any modern car. Yes, assistance could be nice at low speeds, but then you'd lose the feel and feedback.
More importantly steering is utterly precise: most A and B road driving requires a very light touch on the wheel, just "finger and thumb" most of the time. The steering gets heavier on fast long bends, especially when the radius increases. There is an uphill one coming out of Stockbridge towards Salisbury on the A30. The BMW 320 X Drive M Sport will take this effortlessly at 80+, the Aldermog I'm not happy above 70 and the steering load is noticeable towards the end of the curve; the surface isn't good so it needs both hands and concentration. Mind you my old 1990 Mercedes 190 2.6 was horrible at 60 on the same curve, so to even compare a 2009 Roadster with BMW's finest is good progress!
The Aldermog is generally stable up to about 80,depending on road surface quality, so will try altering tire pressure from the nominal 22psi. But think a steering damper could be the answer.
Before changing anything more I'd also like to understand more what the brake reaction bars do, and how much they cost.
