Jarod, my suggestion based upon the same experience would coincide with Ed’s. I have found that a gun case works the best for many reasons, only I never include any of my guns, the case itself warrants special attention. First it is designed to protect things inside from the gorillas that work in luggage handling, I believe they start unloading the plane while still in a holding pattern over the airport

. Second, it will get “special” attention and consideration, and here is where most people screw up in trying to tuck the knives away in such a manner that they will not get noticed. This is BAD! If they are under the radar they can disappear all the easier, and when they are discovered it will make you look like you are trying to hide something.
I tried all kinds of packaging and at one time thought a golf club case was the way to go with knives and swords, and then one time I found my golf club case setting beside the exit door at an airport where it had been carelessly tossed by the folks unloading a crowded luggage conveyor. And the case had been open and interestingly rearranged by security sometime in transit.
Now I use a rifle case and want all eyes upon me as I walk up to check it, not under the radar but out in the open with a big red flag over my head! This allows me to take that case to a separate screening where I open MY OWN PADLOCK, hand over the case and the keys while they hand inspect the contents. At this point always have business cards ready as most often they will be very interested in the fact that you made them, and a very friendly conversation will often develop if they are not too busy (once in Detroit two older women were so impressed with the knives and less impressed with my wrapping that they grabbed a paper towel roll and individually wrapped them up even nicer than I did while talking about how pretty they were.) Then MY OWN PADLOCK will go back on the case and my keys will be returned, with a thank you and a smile.
None of the other cases I have used will warrant your own lock being used, but there are never any objections on a gun case since they must be inspected separately like this. Sometimes at the larger airports I don’t even have to have the hand inspection, I just have to stand next to a special X-ray machine while they run it through and then give me a nod that it is O.K. Then when all is said and done you can even request that the big red “FIREARM” tag not be used since they just saw that there were no firearms inside, so you get all the special attention of a firearm without any of the extra burdens. And as far as finding your case tossed next to the door, I have never had it happen with a gun case, in fact in many airports (one on the west coast comes to mind) you will have to show your luggage tag stub just to be able to touch it again.
Of course the downside of flying with your product is inevitably an airline will send your luggage in one direction and you in the other. I had this happen two years ago at the “Blade” show and sat behind an empty table for two days:grumpy:, until I raised hell at the airport till 3:00 A.M. when I spotted my luggage in a back room and firmly said “That is mine and I want it NOW!” There were two airlines involved in my flight due to a cancellation and for two days they argued that it was the others job to get the luggage to me.

My best cure for this is to always aim for direct flights to a show, it is at the layovers and connections that your luggage goes to Los Angeles while you go to Atlanta.