Thanks. Yeah, I didn't know any of this stuff before I started building my RV. I still don't know much -- that's what Kitplanes wanted in an author. Somebody who has been through "the process", came out successfully on the other end, but wasn't a career aerospace guy...and obviously somebody who can write and communicate the essentials. The stuff I've written on sheet metal techniques just barely scratches the surface but will get most newbies going! I appreciate the kind words and have been pleased to hear from folks who find the series informative.Mr. Mikey said:While I'm at it, I'd like to give kudos to Dan for a great series on metal crafting. (Did you learn all that in your RV building experience?)