Great Opening for Blitz and Bullet.

So, recently I've been employing this opening in my blitz and bullet games, and I've got to say that I've scored extremely well with it._. Yeah, with correct play white should have an easy game, but then again, in bullet and blitz there are many many more mistakes than in a correspondence game... Anywho, the opening is the Reversed Grob, and this line is particularly my favorite (2... g4)

In my opinion, black has a very active position in all the lines excluding the 3. h3 line. I believe that is the hardest line to face, but in Blitz and Bullet anything can happen.

Any opinions?

In your diagram, I believe that 3... d5 is better than 3...c5.

I don't really know, but these positions are really complex and that's why they're really good for blitz games.

Yes, but Black is up a pawn, and white's pieces have no real threats at the moment, so I believe black has time to consolidate and stay up a pawn. Black's next is likely to be 5... Bg7 creating a threat on the weak d4 pawn. And those pawns on e4 and g4 look like they can become disturbing to White.