14sick, to reply to a much earlier question, we cannot 'exclude' non-RVSM traffic, however we can refuse clearence into RVSM airspace due to traffic loads, a safety issue really.
As for the speed control, the guy funnelling you into Hemel from BIG is also putting in traffic feeding from MID and CLN, so it wasnt definately your CRX 146, and could have been slotted in between you. Your lucky that you were only speeded, I'm sorry to the Mearskair I had to give an orbit to around Tiger for the same reason!!!!