I find it a bit interesting that you would ask question one, about a standing female, when just a bit ago, you answered the same question when asked by another member. It just makes me wonder why you would offer breeding advice to someone if you don't know the answers yourself?
To answer some of your other question.
I always cut the cords on mine. I am impatient and for my own peace of mind, want to get the little ones free from mom and breathing as quickly as possible. Plus, it's not unheard of for moms to bet a litte over zealous and chewing the cords to short or ripping and possibly causing unbilical hernias. Cutting them yourself just eliminates the possibility.
I let the female eat one placenta as I sit by annd gag at the sight.
It helps to bring the milk down (or at least that's what I've been told), but too many can cause tummy upset.