Yes I like them but only after having them labbed
and dialed in.
The blades are like butter knifes from Hydromotive and the boat didn't perform like I had hoped.
After getting it right they rocked!
The cruise speed and acceleration increased but I can't tell you by how much as the speedo was out when I purchased the boat the summer before.
I cruise around at 3,800rpm and really enjoy way the boat performs with the extra blade.
I can even tell a difference in the way the engine performs and sounds.
Pretty cool stuff - Can't wait to run some more!

I was considering them for my 357 kaama. I needs sten lift at cruise speed. This is an intersting thread.