GFS shows a much more active 500mb pattern and runs warm so it looks similar to the ECWMF with its more ridgy pattern.
Not sure what to make of all this because every 06Z GFS seems to be its most troughy run of the day. The GFS slowly moves towards the ECMWF once it gets within 5 days. But who knows if that will continue? The pattern change has not even started yet.