I've been to a few - AGM with Steffan, couple of Cwmdu rallies. They were still focussed on the 2 strokes but with a few Rotaxes and even Skorpions about. They were past their heyday but still a good club with a few nutters, mainly Ireland and South Wales based at the time - witness Huw in Spandex at the Dragon.
If I ever get an MZ running again I may go to a few events. But probably not the AGM.
Richard