I personally like the idea of the chevron gridding. It will make T&S a little easier too since the cars will end up in the same order, even if they have re-runs.
The challenge of doing it like this:
/ 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 2 / 2 / 2 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 /
is that you’d have to know how many 2-driver cars there are versus 1-driver cars for each run group.
How about putting a big cone on the right end of the chevron (leave this one in a fixed position) and having the 2-driver cars park to the right of it, and everyone else park to the left? Then put a cone halfway thorough the 1-driver cars once everyone is gridded so the gridder knows when to grab the 2-car drivers?
Like this maybe:
/ 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 * 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 * 2 / 2 / 2
(where the *s are the big cones)