Hydro-Shield, Does it Make Sense?

[Ratickle]

Hydro-Shield is a skeg-mounted hydrofoil that fits on most outboard and inboard/outboard (stern drive) motors, protects your boat’s propeller from underwater impacts, improves your boat’s performance, and shields marine mammals from injury.

Guaranteed improvement in overall performance and handling

Large Size Fin: 100+ HP, Boats Greater Than 18'

Made from a thermoplastic compound, Hydro-Shield will absorb impacts by deflecting without transferring 100% of the energy to the skeg & won't break upon impact

www.hydro-shield.com

 

[Ratickle]

I would think the top speed would go down? But they are saying the cruise speed is improved.

 

[rschap1]

Hydrodynamic drag.
More surface in the water, just like the wings on top of the props.