I use a 60's vintage gillette tech or a 50's vintage super speed. The super is much more aggressive than the tech.
The old techs are about the softest shave I have ever found.
For blades, while the feathers are extremely sharp at first, they don't seem to last long. My favorite is the astra superior. I can typically get 3 shaves on one of their blades.
One thing I have found with safety razor blades. Its possible to get a dud for no apparent reason. I bought 10,000 asta's to hold me over for a while. Occasionally, there is one that just doesn't cut right. Of course they are only pennies a piece, so its easy to toss and start over.
I use Prorasso too with a boar bristle brush, but I find the best bang for the buck is good ole barber-sol menthol.