LOL!!! I'm laughing because if this is accurate, I'LL NEVER GET IT! I'm no perfectionist by ANY means! Take one step inside of the house I live in and you'll see right away!
Looking back at all of the people in my family who have/had AD, there were perfectionists. My aunt (mom's sister) couldn't stand a dish in the sink for more than a few minutes. She'd only use her dishwasher on occasions like Thanksgiving. Even then, she'd have to re-wash the dishes by hand because "the dishwasher never did a good enough job". She was never really a perfectionist with everyone else, just herself.
My grandma (mom's mother) was the same as my aunt, her daughter.
My dad, however, was pretty laid back and relaxed. There was a place for everything and everything in it's place. But he didn't redo what had already been done. If you didn't do it quite like he wanted it done, that was ok. He was glad you did it.
My uncle (dad's brother) is a "tell it like he sees it" type of person. And if you didn't do something right, he would let you know in a heartbeat and then he'd show you how it must be done (his way). Very opinionated. A perfectionist? He would say he's not and in some ways, he's right. But in many ways, he isn't.
My grandpa (dad and uncle's dad) was somewhere in between my dad and uncle although I think he leaned more toward being like my uncle. I think he would have been more like my uncle if my Bohemian grandma hadn't kept him in check.

They were both born to imigrants from what was then Bohemia. Both had very strong opinions that sometimes clashed. And when they did, you'd better get out of grandma's kitchen because she was soon to be chasing grandpa out of the kitchen with a cast iron skillet in hand yelling "Get out of my kitchen, John!" And if she yelled in Bohemian and you asked what she said, she'd say "That's not for young ears to hear". She'd never hit grandpa with the skillet but she never let him think that she wouldn't! That was Bohemian grandma's form of Women's Lib.

BTW, I'm her namesake. I wonder if I'll get like her when I'm old.
Seriously though. This is very interesting. I can't wait to find out what the info your sister is sending you says.
Love, Barb