On Apr 27, 10:30 pm, Tabby wrote:

I'm not convinced what you propse is the best option, but it should
work.

You could well be right, but there may be a certain amount of 'better
the devil you know' at play here!

Check out any pinball machine, looking for a flap where the ball
goes through it, producing a score.

Yes, that's an idea...

Mathew