I hate playing against the London because it allows 800 FIDE rated players to survive for 50+ moves.
By the way, I play the Grunfeld against d4, the Sicilian Najdorf against e4, and the triangle against most Nf3 systems. I also play the Ruy Lopez and the most mainline e4 lines there are for white.
So do you have a strong, venomous system that combats the London move order? I looked at 1. d4 Nf6 2. Bf4 c5 which I like for Black, but they can play 2. Nf3 first. Any recommendations? I accept fianchettos and systems where the light squared bishop gets developed.
Thanks in advance!