in this thread it is said that the best way to counter the 4-1-2-1-2 Narrow Diamond is by using a 4-3N-2(AML/AMR)-1.
However, in the "How to Win Against Any Formation?" thread, this formation is added as the 2nd best formation to beat the 4-1-2-1-2 narrow diamond. The first formation to use to counteract the 4-1-2-1-2 ND in that thread is actually the 4-5-1 V.
perhaps it could be added to the first page in this thread?