lol. not quite true. all good guitarist will know all sorts of skill, be it sweep picking or other stuffs. just making sure it sounds nice. go slow dude. make sure you have 100% control of your fingers. then slowly move up the bpm. im learning sweep picking too. all the best!
Anyone can give me tips for sweep picking? I'm having trouble....
I think is you don't have to sweep pick to be a good musician