Maybe try a different brush with Matchmaster. I normally use a plain old 190, but the last time I had my makeup done, the guy (who is BRILLIANT - one of the best makeup applications I've ever had), used a 188!
That was a big surprise, but it really applied it perfectly. We used Mineralize, but I've tried that brush with Matchmaster at home with great results too. Matchmaster is my "formal" winter foundation ( I use 1, and it's actually a bit better on me lately than when I first got it).
I recently used up my Mineralize cream foundation, so I bought a bottle of the liquid Mineralize and it's so awesome. Easiest to work with and best finish I've encountered so far and my dry skin doesn't suffer from it. Wound up getting a bottle in NW20, rather than my usual NC15, for something a little more casual looking, now that my skin has changed a bit. The NC15 is a teeny bit better match with my neck, but is just a bit formal looking lately on me. I think I will buy the NC15 too, then use it down the center of my face, with the NW20 on the sides and under the eyes, where it's more subtle. I'm wearing it right now and applying it with the 188, I got it all on perfectly in half a minute.
With Matchmaster, I always put my serum and moisturizer on first, but don't let it sink in as much as I would for other makeup - I just give it a moment and blend the Matchmaster right on top, then use a spritz of Fix+. If I use powder with it, I only use something like Elude, that has plenty of reflectivity in it. Those beauty powders from Archie's Girls are good with it too, but Forever Marilyn is way too matte looking to go with, for my tastes, except if I want a really high fashion retro thing for a special night out.