Noise limits on track

Recently I've worked at two of the UK's premier tracks, and found a wide margin of operating standards, competence, and quality of service, afforded to those of us paying out money for access to safe tarmac. At the first track; Snetterton, my Multistrada was assessed as punting out 102.4DB, (the limit @ Snetterton is 102DB), and I was therefore prevented from taking my bike on track. N.B - I was fortunate enough to be able to borrow a friend's Honda CB1000R, (thanks Linda), so lost no time on track, was able to continue instructing, and therefore will lose no income. Two days later @ Cadwell Park the same Multistrada, with additional miles, but no adjustments, was assessed as running @ 100DB, (Cadwell's limit is 105DB & they operate a system where three members of staff supervise the noise tests to ensure that they are carried out competently), and I was therefore able to continue my work on track over the next two and a half days. Same company, same supposed levels of training, equipment, and operating standards, vastly different results. Now, I have learned that there is absolutely nothing positive to be gained by challenging the noise meter operator; even when he clearly is pointing the microphone directly @ the Ducati's engine rather than the exhaust. But if MSV, the company concerned in running both tracks, is to avoid annoying some of its best and most influential customers, it behoves them to ensure that the bod with the meter is adequately up to speed, and that they are accompanied by colleagues who can check the operation of their equipment, so that nobody has their day/work jeopardised by their inadequacy. As a postscript, a Ducati Pannigale running @ 109DB was allowed on track @ Snetterton by the self same member of staff that day because, "he's a punter, and you're an instructor". Sauce for the goose ....? The offending/non offending machine @ the bottom of Cadwell's Mountain -

All the best, Jim.