I wonder how the 11 degree cut was arrived at? It seems odd to me that 11 degrees is also what most target shooters and gunsmiths agree is the optimum angle for a target crown. I wonder if it was just that that was the cutter they had on hand...as they used to say on Saturday Night Live, "very suspicious"....<><.... :-D
oh well, as long as it works, who's to question it....