tick throws

When i do a tick(short kick) into a gigas on the DREAMCAST, it always work.
But when i try at the arcade, it never freakin works. Am i doing it too fast or is it just different from the arcade. Why the hell do they make it different:lame:
On the dreamcast, its in training mode, so the oppent is not attacking or doing anything, and it stills grab, i understand that if they attack or do anything after a tick, the throw will work.

thank for any info