Just been practicing brazing quarter sections of tube onto another tube. Am finding that I'm scorching the flux on the top of the piece being brazed, but seem to be flowing the silver pretty well to all edges and achieving neat shorelines. I'm finding that, generally, I seem to have to heat any joint i'm doing up to a temperature that scorches some of the flux before the silver flows well. Is this just a symptom of a newbie being clumsy with the torch?!

I'll see if I can post a pic or two of some practice joints...