I noticed (new) solder will not adhere to the patina on (old) solder....trying to move O rings to a new position so the panel hangs better. Do I need to sand the patina off?

@TripleR Adding on....I see you are an artist, read your bio. Urrrgh....I might be getting too ambitious. Terrible situation when you have ideas but don't know how to apply them :/

That is fabulous! I have several projects I would like to use paint with and I am having a hard time committing to a brand and type. What base does Reusche come in? What did you use? Did you mix the types? I presume they had to be fired. Are you a classically trained artist or did you utilize a technique video? I just love the details!!! I have two nudes I am sitting on and a piece that combines the Baltimore Oriole and Raven birds that would look fabulous done with paint. Sorry....blahahahah If you have an opportunity I would be interested in picking your brain on these and other questions.