Bass Books
Plucking Hand Workout For Electric Bass by Bernard Lackner
Bernard Lackner has sat down and written a workbook with 200 exercises designed to improve your plucking hand technique! (And a shout out to Adam Nitti who edited this work)
The key here is working with your metronome or drum machine and almost forgetting you even have another hand. I can even see doing these exercises with a “Pocket Picker” or ” Shred-Neck” while you are out and about.