As such as possible, the best kick is the more late kick (99% end of cast). Why ?
Because if your kick ability have a silence work, the guy will be silenced more long than if you insta kick (bc he can't cast any spell during a spellcast, or he will break their spellcast btw)
For calculs, use CastDuration + SilenceDuration.
Ex: Take a 1.2s spellcast and a Silence of 3 secs.
1. You insta kick like 0.2sec. The guy will take 3.2s of silence (spellcasting duration included)
2. You kick at the late end possible like 99% so 1.1s. The guy will take 4.1s of silence (spellcasting duration included)
This technique should be usefull for brain fakecasting too !
This....
I could never understand why people kick so quickly for this reason.