haha i like your thinking.
mines always on 1/4 tank(plenty to get to the servo)
i have a local BP that i always use,so being on 1/4 isn't an inconvenience for me as i have the BP's phone number and ring them
before i bother leaving home to find out they are out of Ultimate like most other servos.
And i only drive it weekends....work ute and excel FTW