[SamMullen]

Originally Posted by Karibou

Clearing the balls from the top net is incredibly difficult. I was watching the volunteer trying to clear them, and it looked like the angle he needed to poke at was too extreme to be able to get to the jam through the hole provided without also sending anything out over the top.

TL;DR, using the sticks is easier said than done.

Has anyone actually had to use them, and have the attempts been successful?

I had to use the stick that I had twice, but I never had a jam that involved more than two balls. Both times were during hybrid period, and I was able to un-jam the net with relative ease. It probably took me at most a couple of seconds to poke the balls free.