Does the Nile unit have alot of elk? and is it more accessable in the late archery than the Naches unit
You will find more deer and elk in the Nile, but also a whole butt load of hunter. The biggest consetration oh hunters willl be in the Nile area. The Nile turns in to a small city durring late season

Your best bet, is to find a unit that is open for deer but closed for elk. The consentration of hunters will be a lot lower and you chance of success will be higher.