So if my understanding is correct, at around +84 hrs is when we need to be watching where the energy goes, highlighted on the below graphic from the GFS 06z output. Hopefully not SE, we want it to go N.
Exciting 12z to come regardless of the outcome.
One question I do have, regarding the above, surely the GFS is better at getting to grips with detail in it's own backyard in comparison to the UKMO for example? or is that wide of the mark?