In that product the EC is usually the clear #1 and the Ukie is a clear #2. #3-5 changes by the week between the GFS, FV3, and GGEM, but it's almost like the past month featured the Ukie as #2 and the GGEM as #2a.
Looks like the EC destroyed everyone on 2/15, but it was a lot more competitive the rest of the month...especially since 2/18.