Soak the fiber plates in oil ahead of time.
I like to use a small bead of silicone rtv on both sides of the clutch cover gasket.
I let it set up overnight too, and fill the oil the next day.
Is that a Need? No
I just reason that since I'm able to, I will...and I've never had one leak.
I also change the oil and filter after the first hundred miles or so, to get any of the new clutch material, especially from the fiber plates, out of the engine.
Also not technically a Need, but it doesn't hurt when you're trying to make an engine last.