braveheart
No issues with getting enough turn in the backswing. Again, the two biggest benefits for me are my path doesn't go left and a more consistent swing bottom. Less fat shots etc..
Also, most hackers never get their hips open enough at impact, especially us seniors. This presets your hips more open. Helps stop early extension if you have that issue as well.
I was using an open stance before I found Johnston's Eureka swing with great results. This just fine tuned it for me and validated what I was seeing in my swing using an open stance.
Works for every club in the bag. Haven't tried it with the putter yet. If the putting goes south I'll give that a whirl as well.
Here's the thing. Don't over think it. Set up with you feet aimed left (30 degrees). Square your shoulders to the ball. Then swing with the intention of swing to the right. I don't always take it back inside like Steve does.
If I want a draw I will, but much if the time I take it more straight back like Bubba Watson.
Also, I have a steep swing like Bubba. If I want a more shallow delivery I keep my left arm below my shoulder plane. Play with it and see what works for you.