I think I got a 1mm and a 4mm. Im not home to look. You could trim the wider one to a tapered point I guess. The problem is getting into tight corners. The 1mm makes that easy but I think you will have too many strokes of the pen to cover wider areas. The 5mm would be good too. Think about covering it with 1 pass as much as possible. Overlapping or going over areas, especially ones that were done minutes ago, will show lines and dull a bit. The smoother you can get it without disturbing again the better.
