In addition to using TOI, which I have been using for most of my shots, lately I've discovered a new "system".
As a first step, I line the center of the back of the OB with the desired pocket and step 2, I line the center of the back of the CB with the same pocket; and then aim the center of the front of the cue ball (a slight amount to the left if cutting to the right and a slight amount to the right if cutting to the left) towards the center of the back of the OB. I haven't missed a shot yet and I get shape by adjusting the amount off center of the front of the CB.
Sounds complicated, but I've got it down to where I absolutely love it and depend on it.
It requires developing a "feel" for how much to adjust left or right of front center of CB.
There are still a couple of shots where I feel more comfortable with TOI, especially long back cuts, but I'm also getting the "feel" for them with my "system", too.