8 ball on a tight bar table with BIH in the kitchen ''on a scratch'' is the real game, closest in skill level to one pocket. I know in the China area they play 8 ball on a 5x10? type snooker table, but not being able to run a ball down the rail and pocket it, dramatically slows & changes the game to ''another game''. But like said before, Matlock was a great 3 cushion player, and the CUE balls used in the early box days, were near identical to the Big Heavy cue ball. I'm pretty sure they were the same diameter as billiard balls.