I owned a Trophy a couple years ago that has a 2002 Optimax and it was a great motor. They do go through a bit more fuel but they have a ton of power . The plugs were pricey from a boat dealer, if you get a deal at lordco they will be around 14 bucks. The bottom two holes are a ***** to put the plugs in but you can cut a piece of hose and push the plug into it, then you can get a good feel for the plug in the threads. I would get mad that the DFI oil was so expensive but they are so good on oil its not that bad. When you go and buy fourstroke oil and a filter for a change its not cheap either. The good thing about a Optimax is there are no oil changes. Make sure to carry a spare belt if the belt fails your compresser will shut down and your screwed, buy that belt at lordco also and save some money. Good luck I'm sure you will like the motor.