I agree with a how to solder video, seen so many on Youtube that are a train wreck, at least if you did one people would know they could trust it. Also keep in mind, it may help overcome the barrier many people have towards building their own amplifier, show them its really not that difficult.
I would need to check, but i recall the manual does have a section on wrapping wires around before soldering, i.e. good mechanical contact first.
On the other extreme i had to work on my TV-7 tube tester recently, i don't know what mil soldering standard they used but i swear they wrapped leads around terminals three times then tied them in a knot before soldering, add to that a layer of anti fungal coating and the damn thing was almost impossible to get apart.
