<1.d4 f5 2.Nc3 Nf6 3.Bg5>

is in accurate. 3..d6 and if White exchanges 4.Bxf6 I always find it to my advantage as Black. If you really want to go for the exchange, here's what I suggest:

<1.d4 f5 2.Bg5!>
Now here's the following:

If <2..nf6> then you can succesfully exchange and double black's pawns and then play g4 and h4 if you want. All though not reccomended. Work the Pawn majority out first.

Obvioulsy Black can't play <2..d6>

<2..h6>, this I have analyzed. Now Black hopes to run off the White Bishop so nf6 is possible. But..

<3.Bh4!? g5 4.Bg3! f4? 5.e3!>

And obviously advantage White!
My how the tables have turned!

<3.Bh4!? g5 4.Bg3!>

Now <4..f4> is wrong as proved, so it looks like Black has a terribly exposed King side. How should Black continue?

I suggest that this isn't as bad as it seems, as now Black has achieved his objective. He is able to play nf6

<4..nf6>

Now this forces Black to play a variation of the Leningrad system, which I think is the weakest of all the Dutch systems, but that doesn;t mean it is neccesairly bad. The only problem is if you don't like Leningrad, then White will most likely persue the line:

<1.d4 f5 2.Bg5>

If you want to play nf6 in this line while avoiding doubled pawns, there really is no choice but to play the above line. Thus, there is the classic way to defend this:

<1.d4 e6>

The only problem with this is you have to be willing to play French. If you don't, it will be hard to play the Dutch if you don't like the Leningrad. So my advice is, get to know solid thoery in the Leningrad System, because it is the base of Dutch play.

The 2 other lines in the Dutch seem solid:

<Stonewall>

<1.d4 f5 2.c4 nf6 3.nc3 e6 4.nf3 be7 5.g3 0-0 6.0-0 d5>

<Classical>

<1.d4 f5 2.c4 nf6 3.nc3 e6 4.nf3 be7 5.g3 0-0 6.0-0 d6>

The only difference being the last move of Black.

I greatly appreciate your input. But 2.Bg5 is not my style. The leningrad is too complicated a system for me. Why can't black play 2...d6 after 2.Bg5?