I was diligently doing my finger drills tonight and I suddenly remembered that I had scribbled down some drills that my steno instructor gave us after we completed theory class. I found them on the back of a folder buried under my stack of briefs and phrases.
I don't know where she found them, but they're like tongue twisters for your fingers! (Finger twisters?) I typed them up so I could share them with you. I think these drills are to improve your dexterity. Give them a try!