Moss, thanks for your input. It just came to me that a universal adapter that would fit between the PT and the attachment so that any attachment could be tilted. That way it would not hold up the building of the box scraper and if it did not work, no big deal. Just thinking out loud for now. I don't have a spare QA plate at this time for that purpose, so it might be awhile. With the equipment I have this could take a lot of time. It sounds like I need a milling machine to cut the slots. There might be other options, so if anyone has suggestions let me know. I could drill several holes and have stepped adjustments.