Finally, the perfect combo!
After trying seemingly every blade out there, and three different razors, I've found the perfect pairing.
Tech (mine's a Travel Tech I picked up for 50c) and a medical-grade Personna. Smooth, clean, and absolutely flawless.
The others, with notes:
The Slim has confused me- it seems a little inconsistent. Maybe a good cleaning is in order. Fine shaver, though.
The Superspeed is an excellent shaver. It can be a bit aggressive, so blades don't last as long.
With the sample packs:
Derbys- never got a good shave from them.
Gillette 7 o'clock yellow/black- smooth, don't last very long.
Crystals- almost as good as the IPs, but one fewer shave.
Dorco 301 and 300- both average.
Merkur- never got along with my face, despite trying different razors.
Nacet- decent blades, harder to find in bulk.
Shark- sharp, but a touch rough.
Sharp- in my experience, misnamed.
Bic Chrome- rough, but good after corking.
Lord Platinum- very nice blades, but a bit inconsistent.
Feathers- sharp, but need corked to settle down the roughness. Nice backup.
Prep Personnas- my perfect blade.
Gem 1912, Old Type, 1965 Tech, 1968 and 1978 Slims.