I agree with the hotter and quicker solder job. If you can use a 40 watt with a .5mm flat or wedge tip, you should achieve best results. Most components can withstand 250~300C for up to 3 seconds without heat damage. If you can heat it up and flow the solder in 1 second, your results will be flawless. I've been soldering for 20 years using 650 degrees F to solder small components and in the recent years, an automatic weller soldering station set at 650F with a .5mm wedge tip to solder micro IC components and digital numerical drivers without a single problem, trick is, soldering quickly (less than a second) and getting the heat away from the part and leaving the soldered lead intact for a few moments before clipping to allow the heat to shield away from the joint.
Good luck!
Brenon |