I'll say thanks also. Posts like Paul810's are why the forums are a great resource. Now I don't have to go spend ~$20US to find that out.

I don't have any experience with the AMK product, but I will say that bigger is not always worse for PSK supplies. Small packs easier, but can be harder to manipulate, especially with cold, numb hands. I've had my hands get so cold that I couldn't squeeze the brake levers on a mountain bike, and that takes a lot less dexterity than turning a tiny metal wheel on a piece of plastic. I'm not sure that the added size, makes that much difference here but it is something to think about.

Now if we can just talk Paul810 into soaking his hands in ice water for several minutes and comparing the two products...