I'll try 450 out with melting the solder into the joint with direct heat. I'm not sure there's a right or wrong way. Just what works.
I watched a bunch of vids and practiced a bit. Some of the vids I saw were Naval grade repairs.... Overkill soldering for what we are into. I just dont wanna buy capacitors again. Visa needs to heal.
Edit: Tried it your way with 600F (450 wont melt this 60/40 solder quick enough when tinning the iron.) Great stuff. Not as hot outside of joint and solder still boiled right into this 14 stranded test. Perfect. Thanks!