how the fuck do punkrock bands get the sound they do by sliding their picks up the length of the strings of their guitars?! m in a punkrock band, and i cnt fr the life of me figure it out! sux because it's a sound so integral to punkrock. am i doing something wrong, or is it the amp or guitar i use( it's prbly me, tho) i use a US strat nd a mesa boogie. i don't fukn get it! someone out there please fukn help me out!!!