Regardless of how the LED7 gets to $5, no matter how long it takes, the bonus time is added. I've had customers tell me that all of the sudden too much time was added when they added a few
coins. If a customers does the $2 start-up and adds $3 any time before the time expires, they get bonus time.
Regarding CC - I don't have CC acceptance at the only wash that I do bonus time, but my WashGear that I have at another wash would not add a bonus because it totally ignores the LED7 and uses it's own timer.