This is the way that I grip and use the cue whether using low or high spin.
Only I move the grip hand in 2" increments from the front of the cue.
2, 4, 6, 8, 10 and finally 12 inches. With using this system it is extremely important that you go to your end of stroke. (finish) And that the stroke be excellerating.
This style of cue control was taught to my instructor as passed down from Vernon Elliott.
Been using it for years because it works.
Happy Holidays
John