I'm no suspension engineer, but thinking about the original geometry it looks to me like body roll in a corner will cause the outer wheel to toe-in a bit and the inner wheel to toe-out a bit, hence increasing the effective steering angle and producing the feeling of improved turn-in.
That sounds undeniably feasible and might explain the significant difference in the feel between original 'non-Comfort' and the revised setup. But, I have news from taking my 'Hybrid' setup to the tyre shop to get the tracking set back to parallel.....
Wow - WHAT a difference! I can authoritatively announce a return to that Caterham-esque feel to turn-in and quickness of the initial change of direction. Perhaps it is indeed down to the effect on steering angle due to roll, but it sure feels like it used to before I fitted the Empire Risers with the rest of the kit.
Maybe just a little of the bumpsteer has returned, but this time it's just to make the wheel feel a little lively to the hand, instead of being a complete liability to both car and passengers. I came back over my usual bumpy, undulating test route and all that fizz and excitement that I felt originally in the steering response is back, but without the life-threatening bumpsteer I had before.
So to recap - I have Empire Top Wishbones and once again the original MMC track rod ends that point downhill once more. I am unable to lower the suspension any further as my shocks hit the headers over bigger bumps.
So if you have Empire and are worried about the resilience of the kit risers, try what I've done and see what you think. It takes 15 mins to change them and a simple £10 trip to the geometry chap.
One VERY happy camper
