Jim,
Thanks for the input. I jumped on a thread on the Boss forum and used this forum to pose the question and post a pic. Linked it back to the Boss forum. I was told that it was for a fold down and possibly meant "Special" When held up to other that don't state "SPEC" it is just a few millimeters in height. I think you wouldn't notice but that's what we found when comparing. Hopey on the Boss Forum had an interesting suggestion also. I am okay with whatever it means if someone can validate. I like the thought of it being for fold downs and have no reason to doubt my much more learned friends that told me that at Marysville. However, I am open to reality if anyone can share it.
I now wish I still had the piece so I could lay do in-depth comparisons to matching numbers sets but sadly I traded it this fall.
Dan in Kansas