People won't train for techniques/abilities for their zanpaktou/res/bows,bount skillz. Oh, and also people should train for "personalized skills" such as Soi Fon's Shunko.
However, if people want to make their zanapaktou techniques stronger
then they should train Either adding more into it, or decreasing the cool down.

These "Personalized skills" Have to be put in the Charector application and must be approved before training

-Edit by The Haitian