Rooky question do I need to mill my 2 row pale malt?
Unless you ordered it pre milled or it came from a kit.
"People ask me what I do in winter when there's no baseball. I'll tell you what I do. I stare out the window and wait for spring." -Rogers Hornsby
Only if you want to make beer with it. Then again, I suppose you don't have to-- but you would only get 10% efficiency.