[EdZ]

I suspect in both of your cases the open stance is a compensation for a 'snare' (head motion), brought about due to a faulty pivot (pivot controlled vs hands control). The 10-2-D grip, combined with the open stance line, are reasonable ways to address this - but always keep in mind that the plane line tends to follow the shoulders - and play a fade.

Some daily eyes closed practice swinging a heavy club and holding your finish will help you with the 'snare' (3-F-7D - no teetering) - feet together at first. Also, I would suggest you try not using right anchor, which should help improve Rhythm. In your case(s), what 'feels' like a pause at the top will help you get to a slow start down and help you keep in balance.