Always a bit of a quandary prop sizing. While musing over the winter about the props on my yacht, I used every prop calc program I could find. They all came up with the props I had on. But I was concerned about my lack of speed. I contacted Michigan Wheel customer help (Greg Verseput) with my completed info sheets. I also sent prop photo's to enable current prop identification. There data base has been built with Calculated data and practical data of all the boats they've made props for.
I would suggest it would be in your interest to go through the process of filling in the prop size sheets (10-15 mins) and await there suggestions. They supplied a wealth of information to me besides there statement "that your current props 22x18 are a good match"