This does look interesting, and seems to score rather well in practice. According to the 18 games in the

www.chesslive.de database, Black has a decent score, though I don't see any household names on either side in any of the games.

A couple of wins for White are below, one involving the previously mentioned 8 exf5, and another playing the thematic 8 Nd5. I'm not sure either involves a win out of the opening, but they might be worth some analysis. Willempie and Dutch-Kalashnikov both suggest 8 Nc4, which I couldn't find. Maybe it would be worth investigating that move further.

[Site "St Petersburg"]

[Date "2003.??.??"]

[White "Sinkevich,Petr"]

[Black "Averjanov,Sergey"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d6 6.N1c3 a6 7.Na3 f5 8.Nd5 Nf6 9.Nc4 f4 10.Ncb6 Rb8 11.Nxf6+ Qxf6 12.Nd5 Qf7 13.Be2 Nd4 14.Nxf4 Nxe2 15.Nxe2 Be7 16.0-0 0-0 17.Nc3 Be6 18.Nd5 Rbc8 19.Be3 Bxd5 20.exd5 Qg6 21.c3 Rc4 22.Qe2 Qe4 23.Qd2 Rf6 24.b3 Rc8 25.f3 Qf5 26.c4 Rg6 27.Rac1 Rf8 28.b4 Qh5 29.Kh1 Bh4 30.g4 1-0

[Site "Trevias"]

[Date "2003.??.??"]

[White "Bajo Gutierrez,Ignacio"]

[Black "Menendez Rubiera,Angel Carlos"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d6 6.N1c3 a6 7.Na3 f5 8.exf5 Bxf5 9.Nc4 Nf6 10.Bg5 Nd4 11.Ne3 Be6 12.Bd3 Be7 13.0-0 Qd7 14.Bxf6 Bxf6 15.Ncd5 Bd8 16.c3 Nc6 17.Be4 0-0 18.Nc4 Rb8 19.Qd3 Bf5 20.Rad1 Bxe4 21.Qxe4 b5 22.Nxd6 Qxd6 23.Nb4 Nd4 24.Nc2 Nf3+ 25.Qxf3 Qg6 26.Qd5+ Kh8 27.Nb4 Qf6 28.Qd6 Rb6 29.Qxf6 Bxf6 30.Rfe1 Re8 31.g3 Rbe6 32.Re4 Rb6 33.f4 h6 34.Rde1 Rd8 35.fxe5 Be7 36.e6 Rd2 37.R1e2 Rd1+ 38.Kg2 a5 39.Nc2 g5 40.Ne3 Rd3 41.Nf5 Rb7 42.Nxh6 Kh7 43.Nf5 Kg6 44.g4 Rc7 45.R4e3 Rd1 46.Rh3 Bf8 47.e7 1-0