No one's 'right' or 'wrong' when it comes to personal preference and workflow - whatever works for you, Pat!
That said, I found GR a monster for mangling sounds. I got hooked on the "Special Effects" presets which provide me with much amusement. They are outrageous and nothing to do with guitars per se.
Once I started reverse engineering their often convoluted signal paths, it opened up a pretty much unlimited palette of sound mangling possibilities.... Basically, if I can imagine an effect that I want to create, or an emotion I want to convey, I can get exactly what I imagine with GR.
A good example in practise is the huge distorted cavernous echo that happens on the word "devour" in this latest song I posted on BTR: http://indierecordingdepot.com/uploads/default/original/1X/a799b01a6ab6d05555520bddc7e28e309b9add3e.mp3