I'm looking at options for propping my new Cayo 173. The boat is going to be a tiller w/ a 50 hp Tohatsu. I have spoken with Jack Foreman who is no doubt the MAN, and a nice guy to talk with. However, I still want to try and explore options before I make a decision. I have friends who run the smaller "go fast" aluminum hulls that are built for speed, many of them marsh fish or duck hunt as well out of the same boats. These guys swear by the Yamaha Black Stainless (YBS) prop (PN# 663-45930-00-98). My understanding is it is a cleaver style prop and 13, 14, 15 pitches are the ones that have these unique characteristics. They say they run high with good stern lift, are the fastest stock props they have found, and have the bite needed for jumping shallow and running high. And these are comments from guys with solid credentials also. So I'm hoping someone on here has a similar setup or experience w/ this prop to offer some feedback, so I can get an idea of what prop may work for my setup.