Dave, good point. For those not famiilar with soldering, solder goes from a solid to a plastic state, IE, it melts but stays in a ball/puddle. This is at the melt point of the heating process. If you quit the prpcess there, you have a really bad solder joint. IEa cold joint. With more heat, the solder will turn liquid, you will see the ball or puddle suddenly spread and sometimes, disappear. At this point, you quit adding heat, but don't allow anything to move for a couple minutes intil things have cooled enough for the solder to go back to a solid state again..

Don