The Mighty Mouse alongside my trusty old Logitech mouse on my BSOD mouse mat.

I've seen a number of people saying that it's actually easier to hold your fingers out straight rather than resting them on the surface of the mouse. Now unless you have something weird going on with the tendons in your arm then the relaxed position for your hand is with your fingers gently hanging down. Hold out your hand in front of you and relax it and you will see this. Now rest your relaxed hand on your mouse, your fingers should comfortably fit over it with your index finger resting against the left button and your middle finger somewhere from the scroll wheel (if present) to the right side of the mouse (assuming you're right handed of course). Unfortunately in this relaxed position you can't right click on the Mighty Mouse without first lifting your index finger. The problem with keeping your left finger in the air is that it requires you to constantly keep one of the tendons in your arm under stress, this eventually will lead to RSI or some other issue with your wrist or arm. Something else I've noticed is that the Mighty Mouse doesn't glide very smoothly, at least compared to my logitech mouse. The Logitech glides silently over the mouse mat where as the Mighty Mouse makes an audible rubbing sound against the material. The bottom of the Mighty seems smooth enough, so it must be something about the shape of the rim of grey plastic that's causing this friction. This is something one could get used to, but I really like the way my Logitech mouse glides silently as if it were floating on a cushion of air. I have an old Apple Pro mouse here and while it doesn't glide as smoothly as the Logitech it still moves more effortlessly than the Mighty. Finally the shape of the Mighty Mouse would be a bit nicer if the back tapered off a bit more sharply. Perhaps it's the shape/size of my hands but the back end really seems to press into my palm more than I'd like. Unfortunately it's not really practical to hold the mouse further back because then your pinky and thumb don't line up with the side switches which you need to grasp to do long clicks and drags which I frequently have to perform in Photoshop. Anyway I'm going to play with it a bit more and see if I can find a way in which I can comfortably use it, but failing that I think I've no choice but to return it. I'm rather disappointed because I would like a nice white Apple mouse to complement my amazing Macally iceKEY (the best Mac keyboard ever!).