If they run into a situation where they need to hand search your bag because the CTX has determined there might be something dangerous in it, they'll probably either cut the lock or search it in front of you. I think the idea of using a standard lock is a good idea, but I certainly don't want (1) to miss my flight because I need to watch them sort through my clothes or (2) have them not load my bag on because it needs to be searched by hand first.

I doubt these days you'll get much sympathy if they cut your lock either.

Your best bet is probably to call the airline and see what they say.

d