Maybe Nij may have been the first team to use 4-1-4-1and win FL1 but I'm not sure only he could confirm that or perhaps it was at a time Nij won his FL1 titles with a different formation.
I originally gave 4-1-4-1 a try because upon my return to SL, I saw Nij using it and wanted to try something new rather than the usual formations.
Worked out pretty good in the end, thanks for the recommendation Nij