Having used the idea of depressing a button (besides) being on a pit sensor, has merit but seems a bit excessive. First off it would require another detection resource (pin) or programming a routine to allow a pin multiple functions. Secondly, in Slot Car terms re-fueling is all that a pit stop is for. (Stop -N- Go penalty) I believe overrides being able to fuel at the same time, therefore is not a Pit stop, just the penalty box so to speak.