Going to be finishing a bunch of mahogany panels. They've been sanded and now have several coats of shellac as a sealer. Pore filling is the next step. It's a tossup between Liberon wax and standard pore-o-pac grain filler. A very good article by Chris Schwartz title "The simple Dirty Mahogany Finsh" seems to provide the exact results and coloring I want to achieve. But left unsaid is whether varnish can then be applied over the newly filled surface. Anyone used this? Results?