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Excellent approach, very nicely presented. I’ve used it for years with one “old school” variation. We were taught back in the vacuum tube build-it-yourself kit days to make a good mechanical connection before soldering. After tinning, you can make a small hook at the end of each wire, connect, crimp and then solder. Makes a somewhat more reliable connection because the joint is less likely to accidentally flex while cooling thereby avoiding the dreaded Cold Solder Joint.