I was under the impression you weren't supposed to use TSA locks either.

Another tip that I got somewhere on (I believe) M4C was that if you can find a shorter case in which you can break down the rifles, you should put the case into a duffle bag before loading it so that it looks like a normal bag when being handled by the loaders or on the conveyer belt moving past people who may like snatching things. Should keep the weight down too. I am in the process of making my own case out of a sturdy, o-ring sealed, 28" Stanley tool box that I picked up at Home Depot. The only part I'm not sure of is the locks....any insight?

Thanks for the post Jason.