When do they put the lining in the shoe? Do they affix it to the shell before cutting out the pattern? Do they put the lining on the last and then put the shell outer on top of it? Do they put the outer on the last and form the shoe, and then put the lining inside of it?
I will allow someone with more shoemaking knowledge than me to answer your various shoemaking questions. Should Nick V. be on the Forum today, I'm sure he would have the answers you need.