On the topic of wires. I use both the solid and pre-tinned stranded wire.
I like the stranded stuff I got from Smallbear a lot. I also got some from pedalpcb that is ok. Both of these seem to have less strands than the typical generic stranded wire I see on Amazon/etc, and I think that lends a lot to its usability. A small number of thicker strands are better than a large number of super thin strands.
For solid, I've never had issues with it breaking on me (but I have had stranded wire break on me, go figure).
I prefer 22 AGW when using solid, but 24 AWG for the stranded.