Overswinging

Anyone know any good drills for stopping overswing?

It's something that keeps creeping into my game and causes me loads of problems.

A drill I like-take your stance without a club, arms hang down naturally, cross arms so back of right hand is on back of left hand and swing your arms back. When your left arm starts to bend, you are about as far back as you need to go. Hope this helps.

I often found that if I restricted myself to a 3/4 swing the club would go a little further than I thought and just about make a full swing by stretching of the joints and the bending of the shaft etc. You could just try to consciously make an 80 or 90% full swing.
So long as your not off plane and the ball flies straight you'll be doing well. Watch yourself in a mirror/window or film yourself and watch the playback. You can ask a friend to watch as well.

I have the exact same problem, only it seems like i have more problems whenever i try to fix it. For me, I try to feel as if I'm making a half swing. It feels very uncomfortable, but I do make a nice swing whenever I think I'm making a half swing. Just a small swing thought, hope it helped.

To keep from overswinging, practice in front of a full length mirror. Ensure your left heel (for righties) does not come off the ground. This will keep your hips from over rotating, keeping your upperbody from over rotating.

Focus on one swing key, for example tempo. Think only of two beats going back and one beat going down and through the ball. Start the backswing with one, two, and then THREE (down and through the ball). Hold the grip with no more pressure than you would hold a tube a toothpaste. It's all about tempo. Not only will you stop overswinging, but you'll blast the ball down the fairway. Best of luck!
tlucas