Thanks for the comments! I can likely figure something out. The issue with a bullnose and scimitar isn't the curve, or large tip (the "physics" work the same - point the tip in the direction you want it to go, and pull out with an opposite swoop), but with there normally being no spot for a pin for down the road, or a slightly less than perfect friction fit. I might make a test saya for an old bullnose and scimitar now, just to see how it goes. Send me pics and I'll be able to give you a better idea.