1. would this be a good iron for the job (tip fin enough, and temp/wattage good)? I have a crappy radioshack one that I'm not confident with.
2. After cutting off the old opamp, do I really need to desolder the legs at all? Why can't I just solder on the new opamp?
3. What soldering process should I use for the most ease? I saw someone use some liquids solder early? What do you recommend?