Razor: Progress standard set at 3.5
Blade: Gillette Silver Blue
Soap: Mitchell's Woolfat
Brush: Maggard synth
Post: Anherb Aftershave Conditioner
So, I have come to the conclusion that no matter which brush or soap I use, I'm going to get a result that doesn't vary too wildly. If I use MWF, I'll get the best post-shave but apart from that, the actual shave itself doesn't vary much whether I use a $30 puck of S/Varesino or an $8 Haslinger.
What I've actually realised that, for me, the razor an blade make the biggest difference in the shave. I have been using Polsilver SI blades solely for over a year now and they are the best combination of sharpness and smoothness. I have 7,000 in my stash and don't think I'll ever change to another blade as I've pretty much tried them all.
I had a tuck of GSB laying around so loaded one up in the Progress. Whilst the shave was very smooth, the blade itself felt only a bit sharper than an Astra-SP, which is to say, not very sharp. I ended up with a nice shave but I had to work for it. Extra buffing, and even found myself applying pressure in tough areas.
At the same time, if I load up a Polsilver into a milder razor, I go through the same extra effort as above. I feel that once a razor has been chosen and suitable (e.g. even with a dull blade, I can't go beyond 4 on the Progress as my skin can't take that much exposure) then the next step is to find the best blade. I can pop a Polsilver into the Progress or Rockwell 6S and I know I'll get a smooth, close, comfortable shave. As an added bonus, the Polsivers last me longer than any other blade.
So whilst this might, by default, seem minimalist...I just don't see the point of having extra hardware that gives me a mixed bag of results. I'd much rather stick with a couple of razors (although I do have 3 Progress razors) that suit me and my Polsilvers.