Has anyone ever attempted to reload an injector magazine with a fresh supply of blades? I have an all-metal Schick magazine which works great when it's time to change blades. I also have a few plastic magazines from CVS. The CVS blades ain't bad but I don't like the flimsiness of the cheapo plastic magazine when trying to insert a new blade into my razor. Can I empty out the plastic magazine and load up the metal one without slicing my fingers to ribbons?