I downloaded the pdfs and looked over them all. The J11, J12, and J13 downloads are all identical. They are all J11. Do you have J12 and J13? They involve recovery and would be the most valuable to have, it would seem.
As a refiner, I usually don't get much value from the Kodak publications. They are usually crammed full of technical info, but aren't very practical. They are trying to sell equipment. I used to have a thick Kodak booklet on values and recovery, published in the 1960s, that was excellent. Since then, the practical info has gone downhill.