Anyone have any experience racing or know about racing a tredonic hull? This may just be a name that Custom Craft came up with for thier stepped hull in the '60's. they also refered to it as a laminair air flow hull. it looks kind of cool and looks like it should be pretty fast, just wondering if any one has any info on it. the boat is a Custom Craft Sun Ray, 17' 600# hull with a Merc 1000 motor. From the people I've talked to I'll be happy to see high 40's with an aluminum prop, mid 50's if I go with stainless steel. I've read in the bruchures that they had some succes in some of the marathons in the mid '60's.