What is the opinion of Reddit about the
Muhle Replacement Razor Head Closed Comb?

Shim the razor. The MR8 handle is a brutish beast, and awesome.

You make a shim by taking your old blade and cutting off the sharp edges. When you assemble your razor, it’s handle, baseplate, shim, fresh blade, top cap.

Consider shopping around and buying a different head for it. Put an R41 head on it. http://bullgooseshaving.com/muhle-r41-head-a-la-carte-new-2013-version/ or http://www.amazon.com/Muhle-Replacement-Razor-Head-Closed/dp/B00MJ9JLHS/

Also, experiment with different blades.