Me being the descendents fan that I am was watching their movie documentary called " Filmage." During it there's some segments with the original bassist of the band Tony Lombardo. Unlike Karl Alvarez who is an amazing fingers style player, Tony is a pure pick bassist. He plays mainly all down strokes and shockingly you would think he was a finger style if listen to his tone. Anyway he also has great speed and stamina which was developed from a custom 2 lbs weight wrist band that he used to strap on his wrist while practicing or warming up at home. Being the fisherman he is he used fishing weights and duct tape to make the wrist band and he would strum for hours. When it came time to play without it his wrist and forearm obviously didn't have that added extra weight anymore and he would be playing super fast. I think this is a clever idea and it's something I been meaning to do for a while now but I haven't. Does anyone else have any methods like this for your playinga,a.