Well I got my new (to me) 17 ft Stratos with a 150 Johnson. The one with the 15X17 prop (stratos recommended a 14 1/2 X 24). Even though the prop was slightly damaged I tried it and it ran lika a striped *** ape - especially the hole shot. I never went WOT because the tach is shot and I don't want to go over 35mph. I then tried the 14 1/2 X 23 prop that I bought and it ran fine also although not near the hole shot. I will get a tach so I'll know, but I want to ask: If I never plan to run at WOT and therefor never get to max rpm will the smaller (17 pitch) prop hurt anything. Thanks for any info you can offer.