250 ProXS, Serial#- 1B962763. Serviced last May. 280 hrs Total time. Last two times out have experienced intermittent high idle. When I shut the motor down and restart, it will idle fine. To prevent further and future issues, I took it to a dealer with a merc master tech and he checked the air and fuel pressure and said there were no faults. He checked the throttle cable, linkage, hot foot. Ran fine for him so didn’t do anything. Can or should I keep running it? Not sure what direction to go with this one. Any help appreciated.