Bass String Buzz @ 1st & 2nd Fret
Instruments- discuss specific features, luthiers, instrument problems & questions
More thoughts... you say the buzz was more pronounced when you had 'flatwound' guitar strings on, and the buzz was less so when you switched to regular wound strings. To me this may suggest that the buzz occurs when the string is not well seated in either the nut slot or the bridge slot. If you have a slot that is shaped with a "v" shape nut file, and the string is heavy and is round, then it leaves a very tiny space gap at the bottom trench of the V. This often causes buzzes. It's a little like putting a round peg into a square hole... you get gaps.
Talk to your husband about this. I have sometimes solved this 'slot gap' string seating buzz problem by doubling or tripling some waxed dental floss and gently but firmly running an 8 inch length of that that back and forth in both the nut slot and the bridge slot. (don't saw it too hard, you don't want to file down the slot) That can buff and smooth any microscopic burred edges in the slot and helps the wound string seat more snugly without actually filing the slot. Obviously you loosen the string first and pull it over to the side while doing this. It's an easy quick trick to try that won't cause harm to anything, and may make a difference. The fact that a flatwound string buzzes more than the round wound string makes me suggest this.
updated by @strumelia: 05/18/20 12:00:47PM

but they came out well enough and taste good- satisfying our sweet cravings. We figured out that if we each eat only three cookies per day, they'll last us three whole days. Oh boy!
I did enjoy writing those blog posts.
Nuts to them!
of their wonderful croissants. It's been weeks since I had one, or had bread that hasn't been frozen, thawed, and refrigerated. :)