I'm not looking to switch to cartridges (heaven forbid), but I was thinking about picking up something that I could take as a carry on with me when traveling just in case the safety razor blades in a checked bag don't make it to my destination when I do. As far as I know, cartridges are considered acceptable for carrying on airplanes. So, I was thinking I'd pick up a cartridge razor that I could take with me just in case. I've found a handle that was originally designed to take Schick Super II blades. Are there any other options for finding cartridges that would fit this handle or would I have to always try to find NOS blades for it? Also, how tolerable are the shaves that any alternative cartridges might offer? Thanks guys.