I change mine one at a time unless I'm doing something else to the instrument, e.g. a setup, new bridge, etc. On a mandolin with a floating bridge it...
Really , I think only YOU can determine what your time is worth, chat with the friend about it. If you look at it as paid practice that's one thing,...
Unwillingness to perform verifiable statistical analysis rarely deters many from theorizing and speculating as to the whys and wherefores, the causes...
I think that it would be a far better idea to learn how a mandolin is built and then build a few before you even think of disassembling one. Knowing...