The Montec is my favorite of the SS 3blades. They are a one-piece head, with no welds like the others. I know the SS Snuffer advertizes a 1 1/8" cut width, but it doesn't have it. The Montec does.
The HellRazor is nice because it comes shaving sharp. A little stropping on leather enhanced it a little for me. It does have welds though, which is just another place for the head to fail.
The Montec is perfectly designed for flight, and if I had to shoot a 3blade, it would certainly be the Montec.
Craig