To each his own; but I think the weed is harsher when you feed to the end. Weed I flush is smoother. Then again we could have different definitions of the end. My rule of thumb is, "When I think it's done, give it 1 more week". So that's when I flush.I like to starve (no water) it for 2-3 days, sometimes in the dark as well. At the very least, chop before lights on in the morning and the terps degrade.
But for the love of god, before you flush (not you @013 ) make sure you even need to. Chances are you don’t need to and not only will it not help anything, it will short your final yield. Feed it til the end, it will decide when it’s had enough, and it will leave the rest.