Theory about Kaioken

[withheldforprivacy]

These days, i read a fanfic called Bringer Of Death. The author has a theory about Kaioken; as a person grows
stronger, the technique becomes harder and harder to mantain. How is that? I think it makes great sense. It
explains why Piccolo or Cell never used it and it allows us to turn SSJ into an additive, which solves the problem
of Buu Saga implications about SSJ nerfing (Saiyans cool to fight Piccolo as base, Gotenkses power).

 

[Zippy]

I guess it could be because, there is more strength to manipulate.
But that would mean its the easiest technique in the world for Gohan boz....