Sure, normals: So, the A method has 5 uv islands as apposed to 4 for B/C. If you had to use hard edges to account for the normals on method A, you'd probably be up to about 10 uv islands, maybe more. If you had to use any hard edges on B/C, you'd simply use them on the natural seams, no big deal. [Edit] Doing the math, if…