Exactly, once you're comphy with keybinding it all becomes muscle memory. And as I said in a previous post, while clicking you spend more time than you need staring at your spells. You lose so much awareness.
Not true. Someone who is really used to his mouse won't look at the cursor, he incounsciously knows where the cursor is. It's the same kind of muscle memory.
Someone who has to look where he put the cursor, will probably have to look where he puts his finger on the keyboard.