Actually, I heard that these coolo Dragon Slayers weren't actually heat treated and tempered until their first use against a dragon. The first task was to dip it into the flame without getting your hand burnt off, then taking it out at just the right time. Next, you had to slip in before it cooled much and nick the dragon enough so you could quench the blade in dragon's blood, without getting your hand dissolved as if acid had hit it. Finally, you had to dip it quickly back into another burst of dragon flame to finalized the treating. Only then was it fully capable of really slicing through dragon scale and deflecting flame.
As far as tattykills go, many of us here have a few around that we like quite a bit. However, we've just found that not only is the sheeple reaction minimal to our slippies, but the darn things really do carry and cut so darn well!
I used to carry a Kershaw, Ken Onion, 1550 blackout constantly. It was THE knife I carried for a few years. It sharpened up, was handy, and the assisted opening was just slick and fast. Really handy when I would need to cut something, but only realized it when my hands were full of what I needed to cut. Then I got tied up with this bunch and started coming home to traditionals. After a bit of carrying slippies I found that when I tried to clip the 1550 into a pocket it just seemed bulky and more troublesome to carry than it had in the past. While the blade would take a shaving sharp edge with ease and hold it, the thickness of the blade kept it from slicing through many things as slickly as my slippies did. The thin blades and edge geometries just cut so fast and slick. The smaller blades also were much handier for a number of tasks.
I still have my 1550 and use it from time to time, usually when under the car and don't want to grease and grit up one of my slippies. It's a good knife, but my needs are just better served with more traditional cutlery now.