Hi all! Does anyone know whether a harness without metal will make air travel easier with cats? I had previously purchased a harness called "TSA Fast Pass" () for one of my older cats, but never actually used it for air travel as I had intended. I now have two 1 year old cats that I will be taking from China to the USA, probably within the next year and I'm hoping to have them in the cabin with me. The TSA harness I had previously purchased is too big for them, so I either need to buy a smaller size or buy a different harness. I'm just wondering how important or helpful it would really be to have the harness with no metal. According to the Amazon page (and their website), having no metal makes going through security easier. Has anyone had experience with taking cats through security checkpoints with a harness on? And do you have any recommendations on good harnesses for travel?