#1
If I'm adjusting my the truss rod on a 5, should I detune first to take some pressure off the neck, or does that kinda defeat the purpose?
#2
Yes, you should first detune your strings, but dont detune them completely, because there needs to be at least SOME pressure holding the neck in place.
What did you THINK he did with that 7th string?
Actually play music with it??