a little too crusty for my tastes. I would have to take a few deep breaths if I managed to get my flux that discolored. With silver, proper heat control means very little carbon precipitation. There was also a point where he had a big pool of silver on the tube and yet he was adding more silver. Good way to make a mess.
I also feed my filler from a place on a tube where I'm going to cut off the tube; in this case it would be on the headtube. Nothing I hate more than filing, and the easiest way to get a good shoreline is if you don't have to file