Same here. I started soldering with lead solder and found it utterly frustrating, it constantly felt like the solder ignored gravity. Then a few years later I

Same here. I started soldering with lead solder and found it utterly frustrating, it constantly felt like the solder ignored gravity. Then a few years later I picked it up again with lead free solder and suddenly it was super easy and the solder flowed exactly how I expected. I'm not very proficient at it but since then I never messed up a pin.