Unfortunately none of these options are things any of us can really do. Failure to do something a government inspector asks for would be the equivalent of failing to take a sobriety test when pulled over by the police. Rejecting the jobs that don’t specify the locations for intensity verification would put me out of business as would putting an obscene amount of test blocks on any given part.

At a minimum I would like to see AMS 2430 add the following:

Process Verification – Each part shall have the saturation point determined at specific locations as specified on the engineering drawing.
In the event the engineering drawing does not specify the locations the locations may be developed by the shot peen source. In some cases these locations may require cognizant engineering approval. It is highly recommended that the shot peen source obtain written authorization detailing the intensity verification locations even if it is not a requirement. The saturation point for each location shall be within the specified Intensity range on the engineering drawing. Intensity verification is not required outside of the locations as shown on the engineering drawing and or the shot peening schedule. All areas requiring shot peening shall also exhibit full coverage in accordance with the engineering drawing. Ref SAE J442, J443 and SAE J2277.