Upvote:2
One advantage of the TSA locks is that it is easy to get spare keys for them. Look at the number on the lock (should be TSA00n with n between 1 and 7) and then search ebay for keys.
Or go to https://github.com/Xyl2k/TSA-Travel-Sentry-master-keys where you can download the files to print a key yourself (or have someone print one for you).