Starks and extra starks were develoed for the norwegian market IIRC, they love their nicotine and they like it strong! I used starks to get off the tabs, it worked! You do get used to them but I find I go through phases of starks, then regular strength snus, then starks, I tend to use more starks when I am drinking, on a good drinking session I double barrel oden’s extreme portions, the next day I can be back on normal general white portions. I particularly like the taste of starks and extra starks, a lot of then have lakrits root in them which I adore!