If you want to make a keyboard more efficient, QWERTY is a very poor choice. QWERTY was designed in the nineteenth century, for mechanical typewriters. It was designed to be inefficient, so that the typewriters wouldn't jam up. As a result, we have such features like: placing the E key such that you have to move your left hand to reach it. E is the most frequent letter of the alphabet for the English language, and putting it anywhere but the home row is nonsensical. What is on the home row instead? A semicolon.

What you've done here, amazingly, is made QWERTY twice as inefficient, by requiring two touches to register certain keys.

To summarize:

- QWERTY: Bad

- QWERTY Mini: Worse

- QWERTY Mini Pro: Still worse, but now costs you money