Thanks for the positive comments guys.
As some of you know when working on a horn I use a piece of wood 3/4 square about 14" long with a piece of leather, maybe 3/4", like a thin belt, wrapped around it, no spaces. I number each side of the other end 1,2,3,4. Spray the leather with water and jam it up into the horn, the leather will swell from the H2O and hold the horn. Once the horn is cleaned up, clamp it in a vice with 1 showing, start scraping/rasping/whatever until you have one panel. Turn the stick to number 2 and repeat through 4. If you like you can do 1, 4, 2, 3. You should have a bit of a square, try and keep the panels of equal size as much as possible. Now you can either reposition the horn so the corners are at the numbers and work the other four panels down. I leave it like it is and work two panels at a time. As you go put some color on the edges that separate the panels, leather dye, magic marker, something you can see. As you scrape the panels leave the marks, you will have to remark but when you are finished you will have very think marks, more like lines and sharp corners. I round them off a little to look used.
I hope this is helpful.
Tim C.