Thanks for the Cain suggestion, I have also been recommended to him in a PM as well, only trouble is he is on t'other side of the country from me in Zummerzet. Tim at New Elms is far closer, is he as good?
Graham, some good points and in the past 5 years I have done about 11,000 miles now, which are all summer use, so not quite as little use as the number might suggest.
My two problems on set up are that a little, with the emphasis on little, more self centering would be useful, but just as important is making the thing safe on a bumpy road at speed. We have some great, relatively empty B roads here, but they are bumpy, at anything approaching the National Speed Limit the car is all over the place. Not as bad as the 2012 Three Wheeler admittedly, but still requiring much concentration. Now, I'm not absolutely certain if it is bump steer, as it was on the MTW or just hard suspension not coping with the roughness. So, a little more self entering might help keep it straighter as well as helping get the steering straight, exiting sharp corners at low speed etc.