Which Multi is it - some pass but earlier with longer exhausts. Another point to note is the Aprilia ECU does not open the valve in the exhaust whilst in neutral - Ducati saw fit to ignore this feature so the valve opens and all noise hell is let loose. Opportunity for some clever software people there me thinks.
Sorry to target fixate but you must be a lunatic going on track with those shoes/boots?! They are not remotely good enough protection; it's like going out with sleeve-less gloves?!