Absolutely agree on the liner. In fact , the smaller the hole, the more consistent the pressure, the better the accuracy. It's brainless to open it up but you probably , given good placement,won't have to.
Try this to knock down the shine. Scrub the final shiney finish with rottenstone and mineral oil mixed in a paste with a stiff toothbrush or something similar. Wipe off. A rag won't work. Put on a final coat of finish and whisk it with a soft rag just as it sets.