If White has to rely on moves like 7.Nh3 (I know 7.Bb2 and 7.Qd2 have been tried as well), I grow suspicious. We are talking about a development gambit, aren't we? Then h3 is not really the ideal square for the knight. That Viola guy btw has done a lot of work to prove the strength of 6...c5. It is up to Knightmare yet, to prove it is playable.
I don't know if Flude-Everett is critical for the WRG. I do know it is critical for 7.Rb1 and I mentioned it only as a start for a debate. The final position is of course won for Black; are you sure the result was not 0-1 ? It seems that we agree about the inferiority of 7.Rb1 then.
Concerning 7.Bf4 I would like to remark, that this is not the ideal square for the queen's bishop. So 7...exf3 is to be considered, though very possibly not best, as Black simply can develop.
Meszaros,T - Benno,P (2275) [C15]
Zalakaros op (1), 1995
1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 dxe4 6.f3 c5 7.Bf4 Qa5 8.Bd2 Nf6 9.Nh3 e3 10.Bxe3 Qxc3+ 11.Kf2 Nd5 12.Bb5+ Bd7 13.Bxd7+ Nxd7 14.Re1 Nxe3 15.Rxe3 Qxd4 16.Qxd4 cxd4 17.Re4 e5 18.Rae1 0–0 19.Rh4 Rac8 20.Re2 Rc3 21.Ng5 Rfc8 22.Nxh7 f6 0–1
Knightmare wants White to play 8.fxe4 here, but does not mention the safe Nf6 9.e5 Ne4, which is OK for Black. Not that I am entirely convinced by 8.fxe4 Qxc3+ 9.Bd2 Qxd4 10.Bd3 Nc6 11.Nf3 Qa4, but I have to admit, that Black has made a lot of queen moves.
Eiter,M (1840) - Mikulic,O [C15]
Wattens op 11th (5), 1996
1.d4 e6 2.e4 d5 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 dxe4 6.f3 c5 7.Bf4 Nf6 8.fxe4 Nxe4 9.Qf3 Nf6 10.Bb5+ Nbd7 11.dxc5 Qa5 12.a4 a6 13.Bxd7+ Nxd7 14.c6 Ne5 15.Bxe5 Qxe5+ 16.Ne2 Qc7 17.Nd4 0–0 18.0–0 e5 19.Qg3 bxc6 20.Rf6 Qe7 21.Rxc6 exd4 22.cxd4 Re8 23.d5 Bf5 24.d6 Qe3+ 25.Qxe3 Rxe3 26.c4 Ree8 27.Rc7 Rec8 28.Rxc8+ Rxc8 29.Rc1 a5 30.c5 Bd7 31.Rc4 f5 32.Kf2 Kf7 33.Ke3 g5 34.Kd4 Bc6 35.Ke5 Kg6 36.g3 Re8+ 37.Kd4 Kf6 38.Kd3 Re4 39.d7 Ke7 0–1
Chouinard,S - Humphreys,S [C15]
corr 1972
1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 dxe4 6.f3 c5 7.Bf4 Nf6 8.Rb1 0–0 9.Qd2 Nc6 10.Ne2 Qd5 11.Be3 exf3 12.Nf4 fxg2 13.Bxg2 Qf5 14.Rg1 Rd8 15.Bxc6 bxc6 16.Nd3 cxd4 17.Rxg7+ Kf8 18.Ne5 Ne4 19.Rg8+ Ke7 20.Bg5+ f6 21.Bxf6+ Nxf6 22.Rg7+ Kf8 23.Qh6 1–0
This last game is very easy to improve for Black of course (eg 10...exf3 at once). As Knightmare does not like x.Rb1 anyway, I haven't taken a closer look.
Black also has 7...Nc6 8.fxe4 cxd4 9.cxd4 Qxd4 10.Qxd4 Nxd4 11.0-0-0 Nc6 12.Nf3 f6 and White's lead in development does not fully compensate the pawn. The extra gambit 9.Nf3 dxc3 does not look correct to me, while 9.Nf3 Qa5 10.Bd3 e5 also looks good for Black. White's lead in development almost has disappeared.
So Knightmare may philosophize about principled refutations, possible improvements and vague attempts (like 7.Nh3), my conclusion is that White simply has to prove compensation after 7...c5. And I don't see it. At the other hand, looking at White's tries at his 7th move, it looks to me that collecting the relevant material takes more time than sorting out Black's correct defense.
The final remark about playing Bareev or Kortsjoj is irrelevant. This site about theoretical correctness; Knightmare's remark also applies to 1.a3 followed by 2.h3.
Let me put it in other words: quite a few contributors over here play corr chess. I dare to say, the WRG leads to big trouble for White in this kind of chess. I know what I am talking about; I have won two games in corr chess with the modification 6.Be3 (alas also unsound).
knightmare wrote on 07/04/07 at 19:51:17:
From a "theoretical" view this line may be just not very good.
This looks like end of debate to me.

It means, that a well prepared player may prove a sound =+ at least. It means, that 6.f3 should be called "hope chess" (Dan Heisman). Such chess is recommendable for blitz or maybe rapid. But it is a very bad idea to teach children stuff like this.