I have 3 different styles of 8mm Hartman Hooks available. (left to right):
Short shank with ergo handle (only one available) (sold), Ball handle (does NOT have ergo spot for thumb – only one available), and primitive shank with ergo handle. Suitable for #8 cuts and above, but I have also used this hook for #6 cuts and it works fine. The primitive shank/ergo handle is the hook I use all the time!