Best prop?

My 2021 Craz came with a "high altitude" prop. OJ 930 15.5 X 15. We mainly boat at lakes around 6,000 ft. and the prop does a pretty good job when loaded down for surfing, but it does struggle a bit from time to time. I don't have a spare and need to get one. I called Nettles and they said they would recommend the Acme 3407 which is a 15.5 X 13. Anyone running this prop up at altitude? We still like to ski so i don't want to loose too much top speed. Any thoughts?

I'm at roughly 5000' DA (density altitiude) and use the same prop to pull 6500+. It never struggles to pull, even with larger crews but I top out at 34mph.

I run a 15X13 and does great at 6000 to 7000 with 6k lbs.......used to run a 15x12 when I had more weight, but I took some weight out and switched. I also run the 450 raptor

FYI Only Surf

thanks for the input guy, I think i will give it a try. Nettles has it on sale right now.