I have been away but excited to weigh in on the Martec. I bought a brand new Martec 14x14x1 for Conundrum for 2011. I found the backing power and the braking to be lacking and wondered why. My Catalina 30 had the same prop and it was 15 years old and still had good backing ability as well as good braking power. Tha Cat has 4000# more to stop. I wonder why the J config is as it is. Is true for the rest of you, Poor backing and braking? I do go forward at 6.6 kt @ 2600rpm and Yanmar 13 2GM
