Yes, the less droopy look is really nice.
I don't know what to say. Doesn't the author of that site/app post here? I think he'll have to be the one to explain the difference.
Swear to goodness I thought I was on a wine forum for a second...darn funny post...popped to unpopped ratio....straight edges....good stuff
That's the chart I remember seeing.
When personally preparing an apple to eat I do cut through the core, then cut out the seeds. It takes slightly longer but it wastes less flesh that coring