Treet Black Beauties

Are these the dullest blades in production?

Shaved with a fresh one in a 37C last night and couldn't believe how bad my first pass was. After three passes I still hadn't cleaned up and had patches on my face and neck that the blade had barely touched.

Tried a second shave with the same blade tonight in an R41 and it was even worse. Again three passes, this time with a lengthy clean up after, and I'm still not clean shaven!

Am I missing something?! I'm quite thorough and have reasonable technique I think. I am used to Feather blades which probably isn't a fair fight but I have to say these are quite comical by comparison.