In the story it was never revealed which of the eight Krana-Kal were possessed by the six Bohrok-Kal, obviously to allow for whatever krana you had packaged in your version of the set to technically be canon, but which variation do you think would make the most sense for the team?
My thoughts are that Tahnok-Kal, being the “leader”, would possess the Xa-Kal, Gahlok-Kal would have the Ca-Kal (to correlate it with Tahu as it is shaped similarly to the Hau), Kohrak-Kal would have the Bo-Kal (to correlate with the powers of Kopaka), Nuhvok-Kal would have the Vu-Kal due to being shown in the animations and making up for his strong but slow nature, Pahrak-Kal would have the Yo-Kal, as knowing stress points would work in tandem with his plasma, allowing him to utilize weak points to weaken structures and attack with them, and Lehvak-Kal would have the Su-Kal, as the enhanced endurance/strength would aid him in moving quickly and ambushing.
This would leave the Krana Ja-Kal and Za-Kal, formed when the Bohrok-Kal form their respective Kaita Ja and Kaita Za.
What combination(s) makes the most sense to you?