It's been a while since your last post so I am taking a chance on contacting you regarding your successful method for removing Diamond Shield. My RV looks remarkably like the before pics of your RV. Cracks, brown sports, mildew etc. If you are still active, please let me know. I am interested in purchasing some of your product if it's able to be shipped.
Replying to your request for pilot study. I am currently slowly traveling NNW. Las Vegas, Utah, Idaho, and Portland Oregon for the summer season. Of course, with shipping I can pilot study anywhere. I have Diamond Shield with mildew underneath and no cracks in the material. If my situation dovetails with yours let me know.