Yes. One should know that Rhino will unroll any surface which is linear in one direction. Then it does not care about any negative curvature. It will only throw out a warning if the area of the unrolled surface deviates too much from the curved one. But there are cases where stretching and compressing compensate. The only way to check is _CurvatureAnalysis. How much compound curvature is acceptable depends on the shape, the size and where the compound curvature happens. Last not least it depends on the material, the available techniques and the people in the shop. I’d say Pascals model is not possible without “special” tools 