Just saw this thread got resurrected. Hans, that's great to know your reg is March because your car is so close to mine in build date, and from LOS too. I ended up going with the 9C VR but because it needed a rebuild, I got a Wells solid state unit and plan to rebuild the 9C with the internals of the Wells. Have seen this done before and it allows the base (with numbers and date code) and cover to be retained. So it looks OE and there's no adjustment required!