I'm a little confused as to the use of the scalpel blades that are present in many of the PSKs(including the Doug's advertised kit). Is it intended simply as a last-ditch backup knife? Has anyone actually tried using a bare scalpel blade (sans holder/handle) for any significant tasks? I can't imagine using one without removing bits of my fingers in the process.

Also, why, are razor blades not recommended for this purpose? Obviously double edged razor blades (like this: http://www.botany.hawaii.edu/faculty/webb/BOT410/BasicAnatomy/HandSec/RazBlades.jpg) would be tricky to handle, but it seems to me that a single edged razor blade (such as: http://home.earthlink.net/~yasudastudio/images/Blade3DTN.jpg) would be safer and easier.

Alex