Asics megablast for sub 3h marathon

Has anyone experience with running a marathon with the megablast? I'm a heavier runner and while I have played shoes like the adios pro 3 and 4, sky Paris, puma deviate elite 3 and nothing is quite as good for my heavier frame as the megablast, longest run I've done in them is 30k with some marathon pace but my question is how does it hold up in the last 10k during a marathon and without a plate when you're trying to hold the pace