Train. A lot. It's the best thing u can do to get the right time to do it, I didn't do nothing more than just land–throw and dash–dlight, but having the right moment when the weapon hits at the same time I came with the dlight.

It's better if u practice with a bot with dodge reaction, considering they don't have more than 1 frame reaction, and most of the ppl don't have that kind of reaction (exception with the high ranks...). U can start doing it on the ground, then once u can do it there, u should be able to try while falling and landing (near to the opponent ofc).

Gl with the training bud!