One more before I engage lists here. My best guesses. Daytime heating will enhance eyewall convection (and therefore peak/sustained winds) between and beyond red arrows. Daytime heating plus warm water support plus dwindling shear, minus coastline proximity HAS BEEN enhancing convection between the orange arrowheads since 0800 EDT, and will continue to do so as this band is pulled into the eyewall along the one headed orange arrow. Bit of a race between this intensification, and shore effect, you call the net effect, I guess NHC is right, marginal intensification. Blue arrow denotes Waterspout Warnings, discussed earlier.
I'm out for an hour.