I really don't have enough info to give an informed opinion. I will say that from your post, I would suggest you live with what you have for awhile and give them a chance. If they are better in almost every way, I think you might have to sacrifice a little in the presentation. I don't think of Wireworld as lean, but rather nuetral and revealing. Personally, I like vocals to be a bit recessed, and I think that it might be something you can come to enjoy if everything else is working. My experience is that when I am used to something, a change seems wrong at first, but could in the long run be much better.