SJC TC6/8

I can’t seem to find the timing for this combo. Does anyone have some sort of technique they use to land this combo more often. The combo is so tight that I can’t tell if It’s an input error, timing, or both.

What exactly is the combo you’re trying?

im trying to sjc tc6/8 with HK tsumuji.

When you jump cancel anything, you have to wait for the jump to start up (after the hitstop ends) to complete a special move input to cancel the jump startup into the special move.

Thanks, I’ve been buffering the move the whole time.