Opinions on the interpretation and enforcement of these regulations varies widely between the FSDO's. Just as some FSDO's crack down on hired gun build shops some FSDO's look the other way. Jim's advice to check with your FSDO is solid stuff. Is the FSDO going to find out if you get fligth training in your aircraft during Phase One flight testing. Maybe, maybe not. It depends on how many people you tell. You are only one individual away from direct contact with the FAA and your FSDO. If you do not know your FSDO inspectors, your flight instructor surely does, your FBO does, your examiner does, your A&P does and so does your flight surgeon. So if your are going to bend the regulations remember this: "Loose lips, sink ships." Jeff Edwards
CFI, DPE -- and I know a lot of FSDO inspectors