But for your connector, you are soldering to it and thus probably want flux. In fact for test/programming pads he also doesn't want copper, but rather a gold connector overlay as for an edge connector on a PCB. I however have no idea how you specify that for a fab house, hopefully one of you experienced board makers can enlighten him (or perhaps he already knows). Copper on the pad will tarnish and likely not make contact with the pogo pin (which is also gold plated for that reason). This may not be something that Fritzing can do as well as I doubt it is very common in simple boards.
Peter
