I tried to just "drop a scale" down on each one thinking they'd be only 2 sizes.
When I first got it & cleaned it up as good as I could I simply put things back as I took it out & a couple of the posts were incorrectly placed I guess. I also move the left tube strap close to the end of the tube
having redone it helped ME out, the ball doesn't hang at times going in the tube entrance anymore.
if you know where I can get the proper wire for the tube switch that would be great ( my original broked & I bendied-up an extra coin switch wire)