I do not know that the take on the d-plane is over here (I was on sabbatical!) but it squares up!
Hmm?
Some members like it, some don't. When I hear the term D-Plane, I reach for the Xanax. I haven't given the subject very much thought but, as always, I'm opinionated.
D-Plane replaces Plane Line with the Target Line and Low-Point with Ball Location. It "Terms" the "Lack of Clubshaft Control" the Vertical Swing Plane, and the "Lack of Clubface Control" the Horizontal Swing Plane.
Rather than learning how to strike a ball so it responds to an Angular Force as it would a Linear Force (Hinging), or Learning Pressure Points to use mechanical advantage, the D Plane promises players to "come as you are" and compensate. It's Corporate Golf Outing mentality. It lacks only the "Bumpers" running down both sides of the Fairway to make it the official teaching sponsor at McDonald's Corporate Golf Outings.
D-Plane is "Compensation Golf". Aim Right, Swing Left, Swing Right, Aim Left and further adjust for Up-hill, down-hill and Side-hill lies. You need to adjust 3 compensations before you choose a club. With D-Plane, you need 15 clubs in the bag. The 15th, is a combination "Angle Finder - Ball Position Locator".
Anyway, it's just my opinion. I think players turn to TGM because they want solutions, not compensations. Players turn to D-Plane because they want to hit the Ball, and turn to TGM when they want to learn to hit it effectively.