Benesesso, thank you very much for taking the time to write that up. I learn something new every time I visit the garage forum. I'm sitting here with "How it's Made" running in the background. They are tempering shovels in an oven while I am trying to glean some knowledge from your post. Pretty awesome! No wonder I can't stay off this site. I might even have to print that out and hang it on the garage 'fridge!