RE: dope question
Dave Brown still sells Flex-All plasticizer. Or the above-mentioned castor oil still works. I have come to the conclusion that current dopes like Brodak (made by Randolph, that makes a lot of the dope used on full-size cloth covered planes) really don't need plasticizing. Sig seems to hold up well, too. AeroGloss has been changed so many times that it is hard to be sure what you are using-depending on the age of the bottle. Brodak is a sure bet though. Great stuff!