Just de-soldering a big heat sink with 5 diodes on it, must be the really high temp solder over 350C. My little 40W station can barely keep up at "400C" maxium, and the solder wick keeps getting stuck.
I've added lots of 60/40 do dilute it, and remove it a bit at a time. I'm almost done.
Not fun, now it start prying it out without breaking more traces