Razor copperhead ergonomics?

[Morbo66]

Hi,

Bought a G5 after reading how every loves it. But I've been getting some hand and wrist soreness after only a couple of days with it. I have smallish hands, and I used to used only Microsoft optical mice (it just felt comfortable in my hand).
http://www.amazon.com/Microsoft-D66...4?ie=UTF8&s=electronics&qid=1207985028&sr=8-4

The big hump in the middle of the Logitech mouse just feels weird in my hand, and I feel like my index and middle finger are straining when hitting the buttons.

Looking from pictures and reviews, looks like the Copperhead has a much lower profile than the G5. Anyone have both and can give a comparison?

I'd go and put my paws on one myself, but it doesn't seem any brick mortar stores carry it anymore ...

 

[WiLLiSTER]

The arch is definitely smaller. The copperhead has a more natural feel for me, but my hands or somewhat medium/large sized. It's been said that it wasn't designed for small hands due to the buttons being seemingly further away than normal, but I don't think I would agree with that.