Let me explain once more the Damage Barrier Formular of Z3.
Bustershot (uncharged): 0
Orbit Shield Boomerang: 0
Bustershot (Charged any Level): 1
Charged Saber: 1
Charged Shield Boomerang: 1
1st Slash: 1
2nd Slash: 2
3rd Slash: 3
Rising Saber: 4
Saber Trust: 5
Kuuenzan: 1, 2, 3, 4, 5, 6 ( Any following station of the Kuuenzan rotation has a higher number, so can´t use Kuuenbu on the boss again so soon, if you hit it with the last station of the move, which has 6 for breaking through the Invincible frames. You have than to wait for the end of the Recovery time. When you use 5 for example you cant hit the boss with a trible slash or with the same move again. If you want to cause more damage, than hit it with a higher number. )
Stab Saber: 1, 2, 3, 4, 5, 6
ZX is different in the way, that you can triple slash bosses after you have executed on them Kuuenzan and Double Charged Buster Shots. In Z3 and Z4 you have to wait after the recovery time has passed. ZX made combos overall easier, but it lacked of the Weapon Variable System and the Learning System in a way, that we couldn´t get the weapons and abilities of the Pseudoroids.