sorry, bad joke. flatness getting to me. GFS 16-day doesn't matter. What it is telling us is what we already knew, that a burst of African activity is coming due to the pattern this year and the MJO spiking into phase 2.
The GFS is a 0.5 degree resolution model out to 192 hours updated 4 times per day, and then goes to 1 degree resolution out to 360 hours. There is a considerable decrease in reliability passed the 192 mark.