Thoughts ?

[Chess Ref]

For HS games I like to hit the diamond about 30 minutes before game time. I find it gives me time to properly do my pre-game stuff.
I'm finding that more and more of the time partners are wanting to go out like 5 to 10 minutes before the game. Quite frankly its a rush job and i don't like starting my games off on that note.

Question is would you inform partner of 30 minutes before hand policy and then go out there alone or should I wait in parking lot for partners who show up at the buzzer ?