I have seen 4-2N-1-3 quite often and i cant find it on the first post.
It's 4-3N-3 but with the middle MC pushed up to AMC.
As far as counters, 4-5-1 v worked for me.
lol... funny enough I played against that formation you suggested yesterday and both 4-5-1 V-style worked well as your 4-3N-2W-1 formation you like to use. I think its easy to counter really, just play with lots of midfielders to dominate.