I am looking at purchasing a 2003 Larson 234 Escape. It has the 5.7L Volvo Duo Prop on it. The boat is extremely clean and the price is right! Curious to ask about any issues owners have had? I am not real familiar with the duo prop system, as I have had an OMC most of my life. How is upkeep / Maint on this outdrive? Any feedback would be appreciated.