Handing Ringers to the robots

[Japper]

I did not see any footage of last weekend's regionals but I heard that several teams were handing the ringers to the robots over the wall instead of through the slot in the wall...

Is this legal to do in this year's competition?

I thought teams were only allowed to throw ringers over the wall at the rack but had to hand the ringers to the robots through the slot in the wall and their hands or the robot could not extend past the wall.

Can someone please tell me if this is legal?

Thanks and good luck to your team!