How to stain uniformly
Bill Tindall, E.Tn.
Is a sanding sealer, as recommended by Minwax, really necessary? no, I use a thinned coat of whatever I am going to varnish with for the top coat. For a urethane varnish the sealer would be thinned 1 part thinner to 3 parts varnish.
If anything is needed besides sanding, No sand to 180 done
is there a better way to ensure an even stain color? Better than what?

I stain most everything I make with pigment stain.
Most would be satisfied with the uniformity of this Minwax stain on red oak. Uniform stain on oak is simply the result of perfect sanding. Begin with 100 or 120 and however you start finish with hand sanding on the starting grit. In good light look for any places that are duller than the most of it, or other defects that need fixing. Dull places are a sign of torn grain that is catching sanding dust. If dust is captured so will stain particles. Shiny reveals planer burnish that is not removed. Scratches will also catch dust and reveal themselves.
Continue hand sanding up to 180. When you achieve perfect sanding perfect staining will follow.
For staining, wad up a golf ball sized piece of cotton material like a tee shirt. Then wrap this ball up in a 2nd piece and tie off at the top. This will be the rubber that you use to apply the stain. While rubbing squeeze stain out of the rubber to apply it to the wood. Follow the rubbing on with rubbing the slight excess off with a tee shirt material. Used this way little stain is wasted and it is just less a mess than brushing on gobs of stain then wiping most of it back off.
