Now if you are saying you are cueing the same amount inside for every shot, this tells me you are aiming for a specific point on the object ball. You are also not parallel to the ctc/cte line and having the perception of every shot being a straight in shot like Cj has been saying. I also do not know of the level you are at with TOI, maybe what you are saying is what it will evolve too? I have not tried this technique yet on a table.
Starting out with the CTC alignment is a straight in shot. This starting point gets your mind going to find the angle of the shot. The connection between the balls and pockets before you get down on the shot with relation to your shot speed is essential. Would cueing two tips over for a large deflection be a touch of inside?

I don't aim for a spot on the object ball. I move into the shot after my subconscious figures out the angle. Many times it looks wrong, but I trust it and pull the trigger. If I miss, I note in which direction I missed it and make the adjustment either on the cue ball or in my connection. The absolute whole solution is making the connection between the balls and especially to the pocket.
Connection is a vague word. How about understanding the relationship between the balls to develop the correct solution angle for pocketing the object ball? I don't pick out the contact point or shot line. I just show it to the boss and trust he will first, put my hand on the shot line where my body follows without my rational mind trying to influence the decision.
I try to get out of the way and trust it. That's the whole enchilada. That's what I'm doing until CJ tells me I'm nuts and to go away.
Best,
Mike