I just picked up a 27 pro max from bamajc. I ran it once back in the summer and it ran 88 barely bumping the limiter occasionally. Since then, I've added the X2 cranking battery (replaced 27 blue top optima) and a 10" solix on a 2" BBT mount on the bow.
I bought the prop because I loved the mid-range on it so if it is a touch too small, no worries, it'll be my summer prop. But, with the extra weight and the unit sticking up in the air on the bow, it may not be too small.
Anyone else run a 27 pro max?
I run a 250XS with 1:62s.