So here's my mid-way video. All the important elements are in such as scoring, ball counter, flippers and bumpers. The "Back in Time" feature triggers the first time the ball goes down the drain and the light between the flippers shows when the feature is active. This light flashes as the ball goes back in time.
It's all a bit glitchy (here the ball counter triggers twice at one point) but I'm generally happy with my progress.
Tomorrow I'll be re-modelling the whole table again.