The video on rib soldering was quite interesting. I was surprised to see him using a couple deep vise-grips to hold things together, as opposed to the specialized shop made barrel clamping fixture shown here a few years ago by Dewey Vicknair. Too bad Dewey stopped posting here, and apparently requested to have all of his excellent posts deleted. I think photos of his fixture may be on his blog or website.
I also found it interesting to see that a Sharpie marker was used to prevent solder from sticking to unwanted areas. I have used soapstone or graphite pencils to do that. But the Sharpie looks much easier and quicker. I can't wait to try it.
Not that I needed confirmation, but it is also nice to see other knowledgeable guys, with actual hands-on experience, noting that corrosive flux may be used for tinning, so long as the residue is neutralized and flushed away. Quite a number of vintage doubles were soldered with corrosive flux. I was repeatedly criticized by one know-it-all here a few years ago for recommending the excellent Oatey No. 5 tinning flux. That product has worked for me in places everything else I tried failed.
