That sounds interesting. These lines are pretty much what Malaniuk recommends in his excellent book.
Petrosian, if you would like to try a class, Gavrikov is extremely helpful. I think it would be a great investment if you want to get your game to the next level ;)
Sam, the sole reason some say the Dutch is better than the Bird is that after 1. d4, 1...f5 claims control over e4. In the Bird, White plays 1. f4, but Black has yet to commit to ...d5. Therefore, he can play another system to combat 1. f4. They are both similar (obviously), but even some of the highest rated Dutch players don't play the Bird due to move order intricacies. Maybe a better player than me can answer that better, but that is what I understand from what I have heard from higher-rated players - it has to do with controlling the e4-square, and that White has committed to the d4 push.