If your waist/hip bend is more, then you may be too far. If you stand too erect, then you may be too close.
There is an accurate way. Impact fix.
Also, grab any of your Ben Doyle tapes and in them he demonstrates 3-F-5 Setting Up. You need to do this before you perform any of the Holy Trinity (Basic Motion, Acquired Motion and Total Motion). Do this every single time you hit a golf ball.