A funny story about that. Most top players ensure they start off centered on the ball by starting with their tip placed at the base of the ball. For many years I did something similar but to make sure my tip started off, not only centered on the ball, but also the same distance from the ball everytime, I would line up over the top of the ball right in the center.
I've matched up and played with Scott Frost several times over the years and every time he would see me doing it, he would say "I know what you're doing there". lol
In order to keep your "shot perspective" the same on every shot, you should try to distance yourself from the cue ball the same every shot.
If the table layout allows you to do that, you can align your eyes over the cue at the same downward "angle" into the shaft and shot picture. It is kind of like the glide scope view of an aircraft landing, you are looking downward and forward at the same view angle to the runway. Every airport, like a pool table, may have a different layout, but the main concern is lining up the aircraft with the runway and hitting it at the proper spot and angle. In pool, your cue tip is the aircraft and the cue ball is the spot on the runway. Following through causes the cue ball to become the aircraft because it is only going to go in the direction you hit it. Try to keep every landing the same.
This allows your mind to "picture" each shot the same way.
It becomes kind of like seeing and shooting "the same shot, over and over".