How to make retrigger time start counting on release?

Mobius.2.toe (4.41 KB)I am working with three videos right now, one of a bubble stream entering, one of it as a continuous loop, and one of it exiting.
The effect I want to accomplish is to have a button or activation point that seems to turn on a bubble gauge which shuts off once the button is released.

Right now I am using a Trigger CHOP as an index to a Switch TOP.
So once the trigger is hit it peaks at 2, the Switch plays the entering video, the entering video video plays, then the trigger decays to 1, which is the continuous bubble stream, then it decays to 0 which is the bubble stream exiting.
Right now I’ve set the re-trigger delay to 26 seconds (about the time it takes to finish the whole loop).
But if I hold the trigger down for over 26 seconds and bang the trigger again immediately , it will skip the exit sequence.
So if I could set the retrigger delay to start counting on release instead of trigger, this would solve my problem.
Or there a better way to do this?