Thank you AbsoluteRanchu. Can you pls let me know whether the sakurao tail in the hand drawn diagram in post #1 is the three point sakura tail, the yotsuo is the four point tail, and and the mitsuo is the three point tail? Can you also pls let me know whether there is any photo above that shows the difference between the normal three point tail and and the sakura three point tail? Thanks again.