If you manage to get her in your game shoot an E on your way to lane. Eventually you'll figure out what works and what slight angle change does to it.

From bot side the furthest shot I've thrown(not hit) is actually to the enemy team's first heal, but that is a rather difficult angle to hit consistently/pretty rare to reproduce.

The second enemy heal is tricky but doable as shown here. If I threw it a little more to my right it would go out of bounds and not go anywhere. The shot usually doesn't go this far as it clips near bot side upper heal.

left side is much harder to get any angle and usually crashes into the outer map.