Well you don't need 3 hours, you just need to actually concentrate on what you're doing and HOW you're doing it.
If you want to learn how to sweep cleanly, the steps I wrote out are ESSENTIAL and you should be concentrating on that stuff constantly when you're practising sweep picking.
ALSO:
I've tabbed out Alexi's Betcha Can't Play This lick.
http://download.yousendit.com/3640625260663DE7
There's some little notes above the tab too.
If you want to learn how to sweep cleanly, the steps I wrote out are ESSENTIAL and you should be concentrating on that stuff constantly when you're practising sweep picking.
ALSO:
I've tabbed out Alexi's Betcha Can't Play This lick.
http://download.yousendit.com/3640625260663DE7
There's some little notes above the tab too.