I was reading your post and recently shared the same ball flight/direction issues as you. When I finally got with my pro he reminded me that the golf swing is an arch. When you swing from the inside through contact you eventually have to get back to the inside again (past impact).

I was so focused on swinging inside out that the path of the club was not returning along its natural arch. In doing this I would push right or compensate with a wrist flip and hook the ball. Bring your club back to the inside post impact and you will straighten right up.

Hope it helps