Just dug out my old logbook, you beat me to the silver by a bit! Silver C 10805, gliding certificate 95517. Was at Bicester Nov 1991. Can't remember how we swung it now, I think we went under 'adventurous training' or some such wheeze. It wasn't an official course, just a fill yer boots week of flying. In fact I think most of our mob were civvies.