I’m working with a soldering iron looking one from wellington with a temperature control on the base. It’s not too bad, but I am curious to see what a more expensive model feels like.
Lots and lots of little circles, that’s the trick as I understand it. The nub that’s a short, even 45° wedge is usually what I lean on most for filling areas but I’m slowly expanding my skill. A lower temperature and twice as many tiny circles can get things really even.