There's something to be said about all shapes as far as ease comes. E and A require less finger indepence when you're able to 'roll' your fingers over the fretboard, however rolling can be pretty tricky to get down at first. C and D shape require more finger indepence which can be tricky. It's all about what you're used to right now.Interesting idea. I will have to see if I can do better with E and A shapes.