im kind of new to tig but not welding. im welding clean .060 cold rolled steel with thoriated and lanthanated tungsten. 100% argon at 20 cfh. a non adjustable post flow of about 7 sec. im getting an odd smell which i think is the argon. i dont feel any different but want to be safe. maybe im running too much argon? wondering if any of you have ever experienced this? i appreciate all of your help. thanks