Another thing that's important to work on is getting rid of parasitic movement, it's the accuracy killer.
It's kinda funny when you do the hanon or czersy (Or however the hell you spell that name lol) and watch your pinky move involuntarily and think it's something physical when it's not, and it won't go away unless you are conscious of it and practice very slowly and concentrate on not doing it.
You can see it's not physical if you lay your hand on the table, then use your other hand to lift the fingers, the pinky won't move then, it's your brain that's doing it.
I still do it if I don't concentrate, grrr.