I like the Pro-Glide as the last step. I start by melting wax with an IR lamp, then finish with the Pro-Glide when the wax cools. I like that better than a cork, and it doesn't generate dust like brushing. The whole process is so clean that I can do it in the kitchen without a drop cloth. I think it's cleaner than liquid wax, which sometimes drips. Spray was is out of the question indoors.
I don't often skip waxing after sharpening, but sometimes I don't bother with the wax wizard or just use a liquid wax. After the first 100 yards on the snow I can't tell the difference.
That works well enough for me. I only use universal wax, and carry a warm liquid wax in my pocket for warm days. Sometimes it's a little slow but sometimes it's perfect. Trying to match the wax for today's temperature on a mountain with 1000 feet of vertical and several sun exposures and a couple of hours of weather changes is a fool's mission.
FWIW never buy tools in ski shops if you can find equivalents elsewhere. THat especially applies to IR lamps and wax wizards.
dm