Theres another option! I'm actually starting a new business making tank grip pads from the surfboard traction material. The material is 4mm thick and will be CNC cut with a pattern in it for mechanical grip, and beveled edges. They are cut bike specific, and I've made templates for about 25 bikes right now. Just placed the first order for myself, some friends.
Theres alot of choices for color and pattern, and will come with the center tank pad as well. We cut this set from a piece of scrap just to check sizing. This is a thicker 5mm material, no pattern cut in and edges aren't beveled. This is on an R1.