I typed at 105wpm when I was 20. QWERTY keyboard, no training, just six fingers, one thumb, youth on my side, and a lot of practice.
If you can deploy 20% more digits, and have an expert on hand during the early stages to give you advice on form and technique, then I'd expect 120wpm to be attainable...
If you can deploy 20% more digits, and have an expert on hand during the early stages to give you advice on form and technique, then I'd expect 120wpm to be attainable...