I need a good tripod bag or case for transporting a Gitzo 1325 carbon fiber tripod when travelling by air. I've been using the tripod's shipping box, but that's getting pretty beaten up. The Gitzo bag seems OK, but expensive and I haven't found any locally to check out. Will a bag and the tripod in it stand up to airline abuse? Or do I need to go with a hard-sided case? Recommendations and experiences welcome.