I generally practice at 400epm. I can do done of the permutations at 500epm. I've done the easiest one at 600epm. And that's without hammering notes. I'm articulating each note with my right hand too.
I can do a 'thumpin and pluckin' solo a little faster. The solo I do in the song Flex is at 600epm. 600epm is exactly 10 notes a second. I don't really think that's
But I don't really practice for speed so most of the I usually practice up to 400epm. Fortunately, I rarely have to play fast.