I just picked up a new TRX 20 I have not even put it in the water yet. But I have had a few 20fts with pro xs 2 strokes and were running 26 and 27 pitch props. These new boat with a 250 4stroke and 20ft boat it has a 23p Fury I feel I will be turning to many rpms. Maybe not but just seeing what anyone else with same setup is running.