The main purpose of footing is to strengthen the area immediately behind the head, where arrows most often break. Hardwood footings on softwood shafts like Port Orford cedar, Doug fir and Sitka spruce also add 20 grains of weight, give or take a little. There's little value in footing a hardwood shaft with another hardwood because the strength and weight will be the same as the unfooted shaft.
Personally, I like footed cedars. Doug fir is considerably tougher than cedar so I don't bother footing them. Sitka spruce is a little physically lighter than cedar and about the same strength, but I have very little experience with it.