I have gone through both the mooney and the TCM troubleshooting guide for low MP. They agree with what you guys said about checking the intake for obstructions and checking the intake manifold for leaks. Those are the first steps on the TCM troubleshooting guide for MP issues. I'm only seeing a very slight reduction, but I've looked back through my engine data and it's definitely there. I get 38.5 on takeoff and then ~36.5 at ~12,000' climbing with all three full forward. I should see 39 throughout. One thing I noticed, at idle, it looks like I get ~14.5" mp. In my old IO-360 it was more like 11" at idle. Do you guys see any less MP than that in idle? If my MP is higher at idle, that might show an intake leak. Saavy has a published flight profile to check for induction leaks but it doesn't seem to be a part of their normal test profile anymore. I'm thinking it's difficult to assess them in the air. Probably have to pressurize it on the ground and use soapy water.