Its guaranteed yes ten but 6k does more damage and gives you more flexibility. For example if you do 4p+k after 6k then 6k again (its guaranteed after the faint) its one guess to cb. If you do the faint after 8pp you cant do a cb after lol. And hajin alot of people assume it does. Ap is smart and asked why I did 6k at final round
I actually didnt know about that setup. I was gonna say that 8PP might not be obsolete since its a natural combo and brings you deeper in threshold. So there could be specific uses for that move as opposed to 6K.