You cand beat a bit of differing oppinions can you eh.
You're right, im not going to be racing, im just after a prop that will give me some good allround performance for when im in the boat by myself-at the moment, im running the std 13" ally prop on my 30hp, which is great for kneeboarding/ringo ect, but when me and my friends go out by ourselves(theres 4 of us with Bombard Aerotec380's!!) i find that its a bit under propped even though when trimmed correctly im getting 30 odd knots(the boat weighs less than the engine!).
From the bit of searching i've done, Ballistic seem to be the only performance prop that do a 15" pitch for my Tohatsu.
Im also considering getting a set of Smart tabs to help getting on the plane when theres extra weight on board.