I'm not a pro but I like to look at "how to" instructions because there is always something I forgot, was unsure of, or didn't know to begin with. My solder tip preference is a 1/8 inch diameter needle point and a chisel point of the same diameter on my ancient soldering pen. I also like the Coleman Cold Heat battery operated soldering pen (when it decides to work right for me).

That guide was interesting. Thanks.