I used to play pretty serious pool (about .... years ago), and used snooker to tighten up my eye. Snooker not only is a bigger table, but the pockets are rounded rather than straight diagonals, in addition to being small (with smaller balls). So you have much less play on either side to work with. You have to be very accurate. After a couple tables of snooker, 9 ball on a "normal" table is a breeze.