I agree Jack with everything you said here, great post. I'm not just a "nodder" either.
The one thing you said that is the most glaring fact in dogmen is that ability to "SEE" and or feel what you have in a bulldog. I've learned bad signs are our emotions tied to a macho stigma placed on these dogs by ignorant dogmen. A truly bad sign is when you've done everything correctly and your dog isn't a bulldog.
I've never understood why dogmen brag about how many they've culled, there can only be two reasons for all the culling.
#1. They have no idea what they are looking at.
#2. They have really shitty dogs.
I'll add another, there are those who are looking to stop one instead of looking to manage one correctly.
S_B