One thing we only see when chasing the game is a short kick off. How many times would the kicking team get the ball on average? If you do, you will get a significant gain in metres for much less of a loss from the “normal” kick off. The short kick off seems to be almost the norm in Union.

Because everything you don't get the ball you give them really good field position.
You have to be confident that you'll score or get a repeat set to do it.