I'm a convert.
As a leftie who plays right handed, I've always struggled with the power play between hands ( as a couple of other posters pointed out, playing wrong handed can make the bottom hand too weak, or top hand too strong) and on a whim I tried this grip today. Shot 15 under my usual! That 15 has always been shanks, thick edges/topping, and slices and none of that happened today so I'm really happy.
Gotta point out that I've played for 1 year, got under 100 for a month then started getting worse about 3 months ago. Down to 90 today is brilliant and has given me hope where I started to despair that I would ever be a good player.
Thanks thread :)