Dean: I have the same "pulsating issue" with my Hydromotive as well.

I like the 30" 4 blade B/C Performer as my fishing prop it ran 97.4 @ 6050 RPM's with a very heavy fishing load and me solo this spring on my 250 XS with 1.62 Titus Sporty. But Kurt got the prop all tweaked for me when I got it and he spent so much time setting my boat up it may not be a fair comparison?