Hand soldered wire harnesses are still used heavily in the industry. If you do not have the right crimper, J hooks and direct soldering are probably even more r

Hand soldered wire harnesses are still used heavily in the industry. If you do not have the right crimper, J hooks and direct soldering are probably even more reliable than crimps (hence why official crimpers are so stupidly expensive). I think IPC has some standard about hand splicing. That being said, I would of probably used the heat shrink solder combos.