Super duper I love this props, easy flying and very efficient

Love these. Also flying with the Ethix S5's. Got the Diatone Roma F5 V2 and the S4's seem to fly as good as the S5's. Also keen on trying the S3's soon. Have had no issues with these props.

Awesome props. My go to prop for any 5" going forward.

For flying at my altitude (330 meters above sea level) this is the PERFECT prop 👌 Same control as S3 at sea level, absolutely phenomenal endurability, not snapped one prop one time! And with the explosions I am prone to this is a big thing. For my personal scenario, best props I have run in my life 🤣❤️🔥

So the Ethix S4 props are more for people who are at a higher altitude, around 3000ft. They have a higher pitch than the S3's which helps in areas with a thinner atmosphere.