How to get rid of "springiness" in pivot joints?

I create a bird and a tree branch (vertical), and create a joint at the bird’s feet. I then animate the bird up and down in a hovering motion. However, the branch is a bit “springy” when the bird moves up and down. How can I set the pivot so that there is no springy motion between the two? It needs to be a pivot joint because I want the branch to swing if it gets hit by something. I just don’t want the springy motion when the bird moves up and down.

local myJoint = physics.newJoint( "pivot", bird, branch, bird.x, bird.y + 13 ); myJoint.dampingRatio = 0; --I've tried different values here, but nothing changes. Probably not the correct property, but what is? [import]uid: 52127 topic_id: 12737 reply_id: 312737[/import]