Hey, congrats WillieD! You have chosen a fine knife!
For those who opted for the two-bladed version like myself, fellow member Thawk sent me a useful tip for opening the master blade (something I didn't clue into when I first got my #15) that I'd like to pass along. The pen blade can actually be pushed down a little deeper into the handle when closed which will expose the long pull of the master blade a bit more. With a little practice, you can push the spine of the pen blade down with the back of your thumbnail while digging in to the long pull and the action becomes quite fluid. Thanks again for the tip, Thawk! :thumbup:
-Brett