And the tip will need to be practically pristine clean for it to be able to do almost anything. I really recommend you get some "tip cleaner and tinner" from Radio Shack or elsewhere. A little thing of it should cost $5, it's lasting me forever, and it's saved me so much trouble you'd not believe it.
I soldered up a Deans last night in about 5 minutes, thanks to a hot, clean iron.