Use bags. I have a 25ft Baha Cruisers and I have 2 bags. 1 is a 22" and the other is a 30". Sometimes I need both and sometimes 1 or the other will work alone, depends on wind and waves. I had 2, 22" bags but found sometimes it wasn't enough hence the bigger bag. With bags I can keep my rpms anywhere from 900-1100 giving me plenty of control. The other good thing about bags is the safety factor. Should you lose power in rough water you can deploy the bag off the bow to keep it into the waves. Plates are rough on seals too.
Total Chaos