I have done maybe 10 tables in my town. Converting them over to use a small cue ball. You need the Arimith cue ball with the metal around the inside of the ball. The one they have been using in Vegas at BCA. Or a cue ball with a metal slug.
You go to Radio Shack and they sell magnets the exact size of a Domino. You know, like 1/2 " wide by 1 1/2 " long. Looks like a Domino. Cost $1.00 each.
You open the table up where the balls come down, you drop the cue ball down a pocket and watch it come down and come to where the fat cue ball usually drops down..The Arimith cue ball with fall in line with the other balls when you do that. So you put 2 magnets together and place them on the metal track just where the ball just drops down at. The magnets are strong and will pull the cue ball downward, down to where it will come out cue ball end hole. Just keep dropping the cue ball down and moving the magnet around until you find the right spot.
No kidding, it is simple. I can do it now in about 30 seconds. And for a cost of 2 $1.00 magnets. No conversion necessary. Try it. It works....