Sometimes it takes a non-scroller to come up with a simple solution to a problem we've probably all faced. Even when I change out the 2 parts on the blade clamps that actually touch the blades, I still sometimes have trouble with the blade pulling out of the clamp. On the De Walt, it was the bottom clamp, and the Excaliburs it's the top. That's because on one I fed from the top down, and the other from the bottom up, so whichever clamp gets the most use, is the one that's going to fail.
Hubby suggested that if I soaked the ends -just the ends - of the blades in water until they start to rust, there would be a rougher surface and the clamp would hold better. Sounded kind of crazy, but I gave it a try and IT WORKS! Now I have a set of 50 colored test tubes in a holder so I can organize 10 different types and sizes of blades into 5 catagories each. The top one is new, the next down is soaking the tops, the next is soaking the bottoms, next is a blade that I've used just a bit but still has some life in it, and the bottom tube is rusted & ready to cut.
The test tubes and holder is available on ebay or Amazon. I actually ordered a set of 40 from Amazon, but twice they sent a set of 50, so I figured a use for the extras. It's actually nice to have a place to put a used but still good blade. I'm sure we've all tried a blade and realized it wasn't quite right for the job, but hate to put it back with new, sharp blades.
Hope this helps someone else out there.
Nancy