RE: Unexpected flight characteristics
You still haven't found what caused your flying issue. I'd suspect something has let go in either your control system or maybe your tail. On the ground handling, check your main gear wheel alignment. That plane should be pretty easy to ground handle. Lift the tail and roll the plane. You should feel no rolling resistance and you should be able to push the tail straight toward the nose and have the plane roll straight. It's possible with a taildragger to have crooked main wheels that you've fixed with tail trim. That will cause a snappy yaw when your tail wheel lifts, making your plane boogie all the way down the runway until the wheels are off the ground.