I have to admit that i still havent reached the comfort level or confidence maybe a better term to fly over water with these props but i have no real reason other than the reluctance to fully trust my 1000 drone to props

There is a slight whistle sound when the mavic is running but still on the ground props spinning but its to faint to hear once the thing takes off

But a lot less money

Ive only flown the mavic with these props twice but noticed no difference in performance