I grew up in an area where a lot of farming was going on, and took 'vocational agriculture' in high school (1974 to 1976). We learned about tools, and did some arc welding, but soldering was not part of the program. I wonder if those classes still exist.

On topic, when I built my Uproar 60 it needed extensions for the tail mounted servos aswell as for the ailerons. I used either Hitec or Hobbico 'Heavy Duty' ones. I secured them with dental floss tied around the connectors.

I learned the hard way about securing connectors. My first ARF trainer needed the battery mounted in the tail. Used a servo extension and didn't secure the connections. The connection came loose and The plane was destroyed. When I'm TRYING to disconnect a servo it seems like the connectors are very tight. But, hide a connection inside a wing or fuselage and it instantly becomes an unreliable point in the system.