Mayhaps this link will get you some of the information you need or at least lead you in the right direction. The forum doesn't see as much action as it used to but maybe try asking this same thing through the MRA facebook page to get a quicker response than you'd get here in regards of all your questions. The riders meeting this past round at PPIR was done via track announcing and not in group.
https://www.facebook.com/pg/Motorcyc...=page_internal
https://mailchi.mp/mra-racing/regist...durance-999192