IMO, it has helped me. I must say though, you will be flying with tunnel vision (sub par ground reference). I use G2 and practice by using a viewer gadget that shows heading, and distance out (perpendicular) to the runway. When I actually began to practice with this method and pay attention to the heading, I was able to get a feel for how often rudder correction is needed (99% of the time). I have also found it helpful in working on rudder correction when the plane is inverted, etc.

good luck.