I've been doing some research on soldering, and these appear to bet 'best practice' recommendations.... (Open for feedback)
600°- 650°F (316°- 343°C)
15-20W - Bad, they take to long to heat up.
30-40W - Good, but you need to be quick.
Brass solder tip cleaners are better on the tip, then wet sponge.
Also, size matters, watch the size of your solder.
.5mm seems good for everything.
.8mm maybe?
Try to get solder with 3% silver.
Per-Heat soldering table?