A fellow racer has noticed information posted differently on Constantine's sanction than what we initially put on our previous post. We very much appreciate him noticing this as we don't want there to be any confusion which leads to someone showing up at the wrong time.
If your classes race on Friday then you must be there for the mandatory driver's meeting on Thursday night. If your classes don't race til Saturday or Sunday then you will be able to attend a driver's meeting for your classes on Saturday morning but you still must pre-register on the pre-registration website.
On site registration regardless is still only on Wednesday and Thursday so if you don't plan on showing up until Friday night, pre-registration is a requirement. This goes for the J and AX classes as well whose driver's meeting is still Sunday morning.