Well, my first record was Aux-88 - Xeo-Genetic on Direct Beat, but my first techno record was a Steve Stoll two tracker on Proper (I think it's Proper 35, not sure though)... It had a nervous non-linear (7/4, I think) groove and I remember having problems beatmatching it 'cause of this non-linear time signature... This was like five years ago and I never play it anymore, but I would never sell it or any other record that I own, cos I know I would end up cursing myself...