When is a good time to start stockpiling in Express? Now? Or have you guys already started?

depends on land goal and how many turns you want to stockpile

end of game is 1870-1900 turns if you started from the beginning

Not a farmer.. so youd have to get advice from someone else

usually depends on land goal. if you don't have any, when you reach 1200-1500 turns is probably a good range.

Don't stock just ss everyone until you're huge and win.