also keep in mind the snooker table is much taller than a pool table and much larger. so the stance changes due to the height of the back swing or stroking arm. snooker players are more accurate at shot making but lack the skills that pool players have more experience doing based on the game and size of the table.
for example: in 9 ball rotation the mastery of english and multiple rail patterns are required to be successful. This knowledge and part of the game is the difficult challenges that snooker players face when switching from world class snooker to world class 9/10 ball matches.
there are many great snooker players who have switched to the world of 9 ball.
But the top guns in 9 ball, 10 ball, 8 ball are majority pool players. i.e. SVB, Mika Immonen, Efren, Ralf, Alex Pagulyuan,