Downpicking endurance
Downpicking means every note is a downstroke. Your palm mute stays planted and every hit has the same angle, which is why thrash and so much tight modern rhythm uses it. It's also why forearms burn out. Build time at tempo in short blocks. Pain, or a shoulder creeping up, means stop. It's not a badge of honour.
What people get wrong
Players treat downpicking like a purity test ("real metal never uses upstrokes"), then either tense up through a whole song or quietly sneak in upstrokes mid-riff. Neither builds the skill. The actual goal is simple and measurable: even downstrokes, at a set tempo, for a set number of bars, with your palm mute in the same spot on every hit.
Step by step
- One string, muted 8ths. Open or fretted low string, 70–80 BPM. Every note the same length. If your palm bounces, it isn't planted yet.
- Short stroke. The pick only needs to get past the string. A big "aggressive" stroke is how you gas out in eight bars. It's the same stroke-length rule as in alternate picking.
- Add bars before BPM. Four clean bars, then eight. Endurance means duration at one tempo. After that, raise the tempo by 4.
- Add an open accent. Chug-chug-chug-OPEN. Your palm has to lift and land back in the same spot. That lift is most of what makes a riff tight.
- Move to 16ths only when 8ths feel boring. If downpicked 16ths smear, you don't need more gain. You need a smaller stroke or a slower click. Use the 1-bar routine.
Exercise
All downstrokes. Start at 80 BPM. Eight 8th notes, then the same bar as 16ths once the 8ths are even four times in a row. Keep the stroke short.
PM * * * * * * * *
e |--------------------------------|
B |--------------------------------|
G |--------------------------------|
D |--------------------------------|
A |--------------------------------|
E |--0---0---0---0---0---0---0---0-|
1 2 3 4
Duration test: two clean bars, then four, then eight, all at the same tempo. Don't speed up until eight bars go by without your stroke getting bigger. If your palm starts bouncing in later bars, that's a muting problem, not a speed problem.
When not to downpick
Single-note lines that already work alternate picked should stay that way. Fast gallops often mix down-down-up on purpose. Downpicking everything is a sound and an endurance skill, not a law.
Common questions
What is downpicking?
Downpicking means playing every note with a downstroke, even when the rhythm is fast enough that you could alternate. It gives every hit the same attack and lets your palm mute stay planted, which is why it's so common in thrash and tight modern metal rhythm.
Why does my forearm burn when I downpick?
Your stroke is probably too big, your grip too tight, or you jumped straight to full tempo. Drop the tempo, shorten the stroke, and build up time at a tempo you can hold. If it's joint pain rather than muscle burn, stop. See building speed without tension.
Should I press my palm harder to keep it planted?
No. More pressure chokes the pitch. Keep your palm in the mute zone without leaning extra weight onto the bridge.