I had a guy let me borrow a case for my trip to Montana in a few weeks. He has flown extensively for hunts. Here is his advice, what do you guys think?

Do not put a lock on the case. I have had many cases ruined because they broke the latch off to be able to look inside the case after I had checked it and had it okayed. Instead I suggest putting duct tape over all of the latches after the gun is inspected.