2 thoughts:

First, it used to be that none of these got fixed, even the grade IV tears. Now, the ortho docs, especially the ones into sports medicine, are fixing more of them. Unless they are so displaced that they are tenting the skin, they wait for a few weeks to see how the healing is going.

Second, a personal story about how important it is to let things heal: A few years ago I went OTB on my mountain bike and gave myself a grade I-II ac sep. I was told to wait 6 weeks, but instead tried to do bench presses after 2 weeks. Well, I ended up injuring it more and got aseptic necrosis of the end of the clavicle. That's where you cut off the blood supply and the end of the clavicle dies. I converted a 6 week injury into a 1 year injury and almost needed surgery. Six weeks is a long time, but believe me, it's a LOT shorter than 1 year. Let it heal! Don't push it!