That's pretty good for using a torch for soldering. Better results (and less chance of damage) are obtained with an old school soldering iron (A big chunk of copper with a handle that gets heated up with the torch).
In hunting for a picture to show you, I saw a bunch on eBay - People are asking crazy prices. There are 4 or 5 of them in my Dad's tool shed. Maybe I should cash in.
Like This:
