Question re: Orbweaver v. Tartarus v2

Greetings! I have a question regarding the differences between the Orbweaver and the Tartarus v2. I own a Tartarus (I guess it must be "v1"). I see the basic differences between the Orbweaver and Tartarus v2 (mechanical v. membrane; no mouse wheel; mouse wheel).

Question: Is there a *size* difference?

I'm a chick with small hands. My hand fits fine on the Tartarus and I did not purchase the original hourglass shaped Orbweaver [it might have been called something else - gamepad, whatever] because it was waaay too big for my hand.

I would go to a store to check this out, but I live in a computer wasteland it seems and there are no stores around me that carry both the Orbweaver and the Tartarus - not even "Best Buy" which is about the closest thing I have here to a store I can buy computer stuff in [really sad...].

So. I know the Orbweaver is adjustable - if my hand fits on a Tartarus v1, can the Orbweaver be adjusted enough so my hand will fit on it? This is the only thing which is keeping me from purchasing the Orbweaver.

Thanks!!