UPDATE:
WE CAN HAVE IT BOTH WAYS!
I spoke to Bill @ CPCC and as most know, the time trials will conclude by NOON. After a short intermission, the bracket racing segment begins - in the afternoon. SO! There is time in the AM to run FLAT OUT for best speed (and compete for the TEAM TROPHY), and then run up to Marc's bash in the afternoon! Can ya beat that!!
Course if it rains, the track part will have to be rescheduled. But, the BBQ will be under the tent - so no problem there.
Scenario: Make a couple or so runs in the morning, and leave for Marc's by say 11:30ish arrive by 1:00 or so for food and fellowship with the gang!
No need to chose which...you can have BOTH! 