Maddafinga,
Some guys swear by the old blades. I've tried quite a few different ones and had negative results with them. I'm all about the Ted Pella PTFEs personally.
I wouldn't hurt to try them, providing of course, they ain't rusty! However, make sure you have a good benchmark to compare them to before you decide SEs suck. My Ever Ready Streamline is my hands down favorite "mechanical" razor, second only to my straights in closeness and smoothness.
These SE razors really do give a great shave once you figure out how to use 'em.
John