I have been following along and reading with some interest what you fella's are suggesting, using and doing. For myself I asked Jim to P & O some already sand blasted parts for me two years ago. Those parts from my 69 are the hood hinges w/springs, the shock tower caps including attaching nuts and bolts and the coil bracket. I have found that with a Boeshield T9 application every two month's or so seems to retain the finish. My experience is that the P & O finish is not permanent or long lasting and requires at least some attention and care. The Boeshield application using a 1" brush and a small rag and 10 minutes is all it takes. Before 6/10/16 and now 8/14/18 photos appears about the same ? Brian