Hi and welcome to the forum.
Unfortunentally I personally do not have and experience with the Emerald, though I have heard loads of good stuff about it on this forum.
Let me say though that Tim knows his PUs and is a bloody genious. If he says Emerald, IŽd go with an Emerald. If I had a buck for everytime I heard his recommendations did not satisfy IŽd be able to buy cheap set of strings right now.