I would really like to see a video where we can see her feet. This sounds really weird but most people who are not engaging their lower half have a very all arms type swing that is really not very sound but her upper half does not look bad at all. I think she need just a little engagement of the lower half, even if you don't want her striding at least an up and down in the same place. I think that is something else I noticed if she is not going to take a stride she needs to have a slightly wider stance, if she takes a small stride where she is at is fine. Again I think the key is going to be getting the lower half working then syncing them up so they work together. The shoulder turn will probably work itself out, try some front toss...again I don't think she will be able to do that shoulder turn with a ball coming the other key is that turn should be happen as she is striding forward reference Ken B's first post coil (with lower half) slight turn and tilt with shoulder all occurs with stride.