Unless you're a stove hobbiest or the hyper competitive type, I don't see the point of having the most optimally efficient alcohol stove. Different overall stove types (alcohol vs. white gas vs. wood, etc) have significant trade-offs between them. But with some experience with three different alcohol stove designs now, I think that the difference in efficiency between whatever is "best" and other "quite good" options just isn't that much.

If you don't already have one, I recommend that you follow the very easy directions that Andrew Skurka offers here:
http://andrewskurka.com/how-to/how-to-make-a-fancy-feast-alcohol-stove/

Skurka has huge experience and uses this one, and it's virtually free to make. And dead easy.

I've used one of those quite a bit too, and it's a great stove.

I realize that I'm not responding to the question asked --- and I generally hate that, so apologies. But I think it might be helpful if you stated why you're so focused on "performance". From my own experience it's just kind of a weird question to ask for any but the stove aficionados.