OOPS! Of course the 1970 is a K model. My fingers just love the L, and had to put it in there. I agree with you that it is most likely a SNAFU. I am unaware of any structural difference in the K model that would affirmatively provide for spins while the other models (D through M) would/may not be able to handle the loads once converted. That K model may be worth some extra money as an aerobatic plane ON PAPER. I guess we all have to make up our own minds about whether we would perform aerobatic manuevers in a plane where it's authority may be limited to an omission on some paperwork. Obviously, you have good reason to love your converted 150/150, and I'm guessing you haven't been out doing snap rolls, etc. And thank you again for your post. Fly safe and legal. When the stuff hits the fan, the FAA/NTSB and the insurance company do alot of digging. They say they are there to help, but you'd better be ready to give them complete copies of the log books (Airframe, Engine, and Prop if applicable) and the filed STC's/approvals. The FAA and NTSB have sanctions they can employ, and the insurance company (I am VP of one) may not pay the claim. Be careful out there.
