Well Jeff I learned today that no matter my training or experience as an engineer, if I choose to take a short cut I'll regret it. I'm like the gov't...I have to relearn today what I learned yesterday. Today I'm putting new floorboards in a friends daughters '93 Firebird. Passenger side front and rear cut out, cleaned up and panels welded in. Started drivers side today, cut out rusted crap, ground and wire wheeled base metal, welding in 3/16"x3"x16" pieces to strengthen frame. Shielded fuel lines to prevent a fire...INSTEAD OF REMOVING PLASTIC TUBING WITH FLAMMABLE LIQUID UNDER PRESSURE INSIDE. duh. Prior all this I'd wetted the area, had a fire blanket protecting windows, panels, etc. and a fire extinguisher in the garage and a water hose "just in case". BTW I know, never use water on a class B (liquid fuel) fire. After the initial BOOM my son Cole got the water hose over and was spraying car interior and fire blanket which luckily was containing fuel spray to floorboard area. He then got the fire extinguisher and ran it to me, pulling the pin on the way. After a few seconds of the PKP (Powdered Fire Supression Agent) the fire was out. My point...our hobby is inheritantly flammable. If you don't have a fire blanket and a fire extinguisher Seriously Consider It. I deal with fire almost daily and I thought I was ok. I was Wrong. BTW reguarding my other post about this generation...my 13 year old son remained calm and did exactly what he needed to do and did it Fast! I'm Proud of Him. Me I'm not so impressed with right now.