WW vs Sensenich
Our company American Propeller is a sales and service center for both manufacturers. In both cases there have been little known service issues and we feel they are both produced with quality in mind.
As far as the blade technology, Whirlwind's blades had the RV airframe in mind and like it's sister constant speed 200RV propeller both were designed by Jim Rust the engineering force behind both. We have sold numerous of both and the RV operator are astatic about the performance and reliability.
The cost is typically $2,500.00 which includes the spinners dome with blade cutouts and back plate.