* Doubly-curved surfaces stretch the pattern. A dome or a saddle has no isometric flattening. That is Gauss, not an implementation limit — but it means a sphere will distort where a bay will not. * Remesh rounds off detail and loses a little volume. It converges as the voxel shrinks but never quite gets there. Leave it off for printing. * A closed drum needs a seam marked by hand — `Seam Angle` cannot pick one, because every fold on a drum is identical. That is what `Seam Edges` is for. * Bar Profile must be a closed curve, and a stitched Run Curve must be open and start and finish at the same height. * Use Run Curve is ignored under Phyllotaxis — a spiral arm curves all the way along, so tiling a run along it would need per-point framing.