Mark do you mind sharing the cost of the related materiel and equipment? As Ken mentioned what precautions do or should you take, inclosed area, booth of some type. Can you recover and reuse the blast materiel?
I am guessing that system will really show where the rot is and how deep it goes.
They all look clean. A part of me likes it while the other says " what about the patina". Patina includes bat guano et cetera. Such is life. Tim