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

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

But a lot less money

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