Originally Posted by rickair7777

You could grant 2-for-1 credit for say instructor time. That's pretty easy to document and verify, and risky to fabricate.

Hard IMC, turbine, ME, even night flying is also reasonably valuable but it's a lot easier to game that sort of experience, or just fabricate it. You could pay some guy to ride along in his kerosene burner and log it without knowing a thing about the plane or touching a single control. You can pencil whip all the IMC you want, as long as it wasn't all in Arizona in the spring time.