Exit is pretty good- balanced but rt.
For myself, I've found that if I keep my weight over the right foot and get my left foot down as quickly as possible, I can turn the right foot much more easily. Maybe working on the overall rotational aspects of the throw, de-emphasizing the linear aspect with drills would help too. Just a few thoughts from one plate chucker. I totally agree with PK when he says 90 of the throw comes froms the rotational element. The best advice I have ever had on this came from John Powell who stresses the importance of keeping the weight behind the right foot when you land in centre of the ring.