hey everbody, ive been playing guitar for about a year now and ive actually been getting pretty good, i dont have a guitar teacher nor do i have any friends who play guitar so i thought id ask this question....whenever im playing thrashy songs, i have a hard time switching from alternate picking stances to down picking stances and i was wondering if any of you guys hold your pick just one way throughout a whole song or adjust the way your holding the pick when you get to a really thrashy part and then go back. thanx