Common problem, but almost never as simple as “pick is faster than fingers”.
Complete lack of connection between picking and fretting, where they both drift, is just a sign of lack of chunking. This doesn’t necessarily indicate that the fretting hand is “slower”, and in fact it’s a problem that happens even with really fast players.
The more common problem among people who say their fretting is “slow” is when you have repeating patterns which are externally synchronized, where they initial pickstroke and fretting motion lines up, and so the phrase doesn’t drift, but somewhere internal to the phrase, a note is wrong.
Here’s a great recent example where we worked with a player on this issue. Anyone with a membership can watch all the clips and read the diagnosis and feedback:
We methodically tested all possible fretting combinations to find the problematic ones. Eventually we were able to find lots of examples where we could get the fingers and picking locked up, one fretting motion per pickstroke, and these resulted nearly instant improvement. Over time, these “successes” become the teachers, and the player will eventually figure out the more problematic sequences. I think we were both pretty pleased with how this turned out.
Our next Primer update on chunking will include more of this methodology, plus tips for chunking very fast lines even when no left hand is involved. Check out the awesome Emil Werstler and how precise his 250bpm (approx) alternate picking is subdivided:
Synchronization for the picking hand is much more about knowing exactly how many motions you’re making, by feel, even when it’s too fast to hear. It can be done, confidently, even at stupid speeds, with the right approach.