Does anyone have experience with the 1.67 Transmission with "High Elevation" 16x12.5 prop?

This is our current selection but I am wondering if it is overkill as we are low elevation. We only surf and have no real need to go above 25mph at any time.

We will have 700lbs of lead and normally run a decent sized crew. Obviously looking to optimize performance for surfing but don't want to over do it

Would love everyone's thoughts.