If you find a machine that drains to an outlane too fast and can't hold your
interest this may be for you.
Most outlanes have a post that is adjustable. If the post is already in the
narrowest position, then try this--Double rubber the posts at the outlane
entrances. Place an additional rubber below the existing rubbers. This
will close the opening slightly and change the geometry at the outlanes
making for longer ball times.
I made this adjustment on a Williams Pokerino. Works great.