Hi Mike, Welcome to the FFN. I've been learning the site for the past three months as I have been recovering from knee surgery. Blew out my right one on a wildland fire a couple of months back. Had the surgery and now life is starting to finally get back to normal for me. This has given me the time to spend getting to know a lot of folks around the world. Something that you may also find really rewarding. This week I started a new group called Hazmat WMD Responders. Please check out the site for some cool stuff that I've been collecting for over 25 years since first getting involved with hazmat. I think you might find some of the shared information really useful. Let me know if I can be of assistance as you learn about the FFN site. Stay safe! Mike from Santa Barbara, CA, USA