I probably win about 75-80 percent of my pyro-pyro duels. I just always outspaz them and thought maybe there was a more finesse way to go (Whenever they flame out, I try to get back behind them and reignite. If you don't have to be behind them to ignite, I guess it was still a good strategy since you're not facing their weapon.) I don't like pulling the shotgun unless it's distant and one on one. Otherwise I feel I'm leaving myself open to others in the area. Nothing like having a medic think he can bum rush you with the bonesaw cause he sees you're wielding the shotty.