Post members in the Two Knights Defense maintain that after 4.Ng5 d5 5.exd5 Na5 6.Bb5ch c6 7.dxc6 bxc6 8.Qf3 Be7 gives Black easy equality, but after 8...Be7 9.Be2! O-O 10.h4!! & suddenly Black has problems e.g.

1) 10...h6 11.Ne4 & there is no point in avoiding the exchange of Knights with Nd5; White castles Queenside and plays g4 +/-,

2) 10...Bg4 (which could have been played a move earlier) is harmless i.e. 11.Qd3 Qxd3 12.Bxd3 Nd5 13.Be2 += 

3) Finally, 10...Nd5? 11.g4! with a powerful initiative +/- 

So it appears we have all overlooked the "obvious" in this variation.