The takeaway I have from this is that the best results seem to be gleaned at 72 hours away from the forecast.
So for a Sunday morning landfall, watch what the models say on Thursday morning.
Also noticing that this will be no Harvey: looks like once the ‘right turn’ happens, Irma will get on her I-95 horse and bust it to the maritimes... 2 days from Miami to Nova Scotia and beyond.