PSA: Stop leashing when the monster has 200 hp or less

I just eyeball it without really looking at numbers.

"Is that low enough? Maybe one more, they'll be fine"

I'll stop around 130-150 depending on my jungle unless he smites. If he wants to smite it I stop at 380.

You can always smite it. Realistically, the laners should be abandoning you far before 200 hp. Also, when I'm malzahar support, all I do is AA 3 times, and spawn 1 Voidling which goes up to 3. That usually takes it pretty low.

or you can stop smiting it at the start

Or just smite it when it has 390 HP.