http://literatureandlatte.com/.....&sd=a

There, signinstranger addresses three of my issues:

1. signinstranger cautions against hardcoding memoir-xelatex.xslt, though I don’t fully understand why.

2. signinstranger suggests using the \let command to take care of the \Cite and \cite problems. As I write, too much gets automatically capitalized in Scrivener, which means user education is the best plan.

3. Finally, the memoir class’s version of setspace is pointed out in the memmanadd.pdf. I don’t need to call setspace, I can just use the command \OnehalfSpacing or \DoubleSpacing to get “double spacing.”