A client brought an antelope to me for mounting, and he's had the horns sitting in his shed for 5 years. Horns are hard dried on to cores. I've worked a lot with Dall sheep and Mt Goat horns, but never had a set of pronghorn that were dried on. Obviously the "hair" structure is markedly different than the keratin I'm used to, and don't want to split or destroy them in the attempt to remove. I need some advice on best way to remove these from the cores without damage. All the searches and tutorials only yielded removal of "fresh" horns, a process with which I'm familiar. Any advice appreciated.