> And I do enjoy a flip. I don't make them simply because I don't want to deal with leftover egg yolks
Flips are explicitly whole egg cocktails. If you're not using the yolk, you're not making a flip.
If you try to use aquafaba to replace the egg in a flip recipe, you'll end up with a different drink because you won't have the flavour of the yolk.
For reference:
Flip – An entire egg
Nog – An entire egg plus dairy
Sour – Egg white only
Fizz – Egg plus carbonation
Optionally, but less common: Silver Fizz (egg white), Golden Fizz (egg yolk), Royal Fizz (whole egg) + carbonation.
I've been doing a lot of cocktails lately (gee, wonder why). And I do enjoy a flip. I don't make them simply because I don't want to deal with leftover egg yolks. But I tend to throw away aquafaba. Next time I have it, I'll try a flip made with it.
Maybe tonight. Thanks.