Richard Thorne once serviced my +4. When I collected it they said there was a steering issue they couldn't trace. Indeed it was nearly undriveable at speed. When I got it home I found they damper blades were totally lose. Problem solved & I changed dealers for servicing.
Wow. I think you're right to steer clear. I have no issue in a straight line at speed, although I did get moved to the right when I went over a slightly raised part of the road which looked like a stretch of tar, with my left wheels.
