I'm having most of my improvement around the TOI, but I've also noticed that lining up the edge of the ferrule and then pivoting has been a great help, too.
Drawback,
As long as what you are doing is working for you that's fine but CJ does not advocate pivoting to the TOI as that makes it like back hand english or front hand english. He suggests a parallel shift of the whole cue just a 'touch ' to the inside.
Perhaps you should read his posts in his wrist thread or...just keep doing what you are if it is working. Self discovery can be of value even if you go elsewhere later.
Best of Luck to You &