how to make a screw more than 3 metres and put enough spin in close distance?

[v1lius]

Hello, i play snooker 2 years (can make all cross or lineup not very hard) but cannot control cue ball in a game - not givving enough spin how to fitness muscle or improve spin ball like a skilled player?

http://www.youtube.com/watch?v=j4j8FK4ec1I