Thanks for the quick reply @milehighshred. My goal is to be able to downpick and tremolo pick with speed, precision and endurance. I want to play stuff like Slayer’s “Praise of Death”, Metallica’s “Disposable Heroes”, Morbid Angel’s “Chapel of Ghouls” or Emperor’s “I Am The Black Wizards”, not to mention write stuff in that vein.
So based on what you’re saying, it’s recommended I focus on one technique at a time. I’m aiming for 200BPM as a minimum for downpicking. I’ll take it one exercise at a time and see how the progress goes.
As for practice method, does it make sense the way I outlined in my previous post? i.e. picking the tempo, setting the timer, then doing 3-5 “sets” of playing for about 2 minutes at that tempo (with small breaks between sets), and trying to increase it by a couple of BPM every time I practice? I tried to approach it in a gym routine mentality 