Many players miss the importance a pick has on their playing technique and style.
So if you play legato phrases a lot and like to dance around the fretboard, think twice about heavy picks. Depending on the song and guitar, you may want to use a variety of pick sizes. While most pros eventually narrow their choices down, make sure you have lots of picks on hand and in a couple of different places. Even high quality picks wear out, and it s better to be safe than sorry especially when you are about to play a gig. For beginners, stay in the medium pick range, and don't forget the many different materials that are available.