In reply to duncan:
> Being good at one will compromise the other.
That was what I was afraid of.
> As you've found, most important factor is fit, your toes must not be scrunched up. As most modern shoes are designed to work with toes curled, it's probably better to look for old-school shoes with a flat last, if that's the correct expression. La Sportiva Mythos or the old 5.10 red anasazi slippers, sized comfortably, could be good if they fit you.
Spot on with the scrunched toes. That is exactly why Anasazis work so well for me on face climbing, so it's almost certainly going to compromise standing on small edges. I'll give the mythos a try, it seems to get good reviews.