I even think that, for the sake of the next two books, we should compile a list of quotes throughout the book mentioning the effects of angreal and sa'angreal, as well as instances of people using them and the relative amounts of power used.

I believe, although I'm not positive, that a full circle cannot utilize an angreal or sa'angreal--it will only magnify the holder's strength. And by strength, in this case, I mean the amount of power that channer X is capable of wielding at that particular moment. A sa'angreal, while it would change Egwene's trickle into something much marger, may not have been enough to account for the amount of power she wielded. And it certainly should not have multiplied the strength of the entire Link.