How exactly do you do that? I too have a two blade fixed and have often wondered how to align it.
You have to get into the water and align the prop vertically and then mark the shaft inside the boat. Then, when you are underway, you can put the transmission in gear at the right point to stop the prop when it is vertical. It's a PITA and not particularly effective on fin-keeled boats. 'Course, with your skeg hung rudder, it will provide some drag relief.