Does turning off the PCI eliminate the need to aim swings?
If using Zone hitting, turning off the PCI simply makes things more difficult because you can't see the PCI cursor. You still have to aim with your left stick towards the ball if using zone hitting.
Then what hitting settings should I use??!
Either Pure Analog or Directional Hitting works if you simply want to "press one button" to hit, and never worrying about aim for the ball. You will be able to hit high and low pitches without ever needed to move the left stick.
Please do note that with both of these methods, you will still get "good" timing resulting in pop flys, infield grounders, foul ball popups, and sometimes you'll completely missed the ball as well even with green "good" timing.
(A) Pure Analog - simply push the right stick up (normal hit); pull down and push up (power swing). No need to touch the left analog stick.
(B) Directional Hitting - simply push the X button (normal) or Square button (power). Honestly, there doesn't seem to be a need to touch the left analog stick at all. Sure, you can influence where you hit the ball by pushing the left stick, but timing your swing (early, late, etc.) will still result in various hits to your pull side and opposite field.
As someone who always used Zone Hitting. I wanted to test out Pure Analog and Directional hitting right now before I gave you a possible answer. From my limited experience, they are essentially the same. Even though the instructions says to use the left stick when using Directional Hitting, both "pure analog" and "directional hitting" seems to rely simply on timing your swings without ever needing to touch the left analog stick.
I managed to get seven consecutive hits using Pure analog in one inning (hall of fame).
1. Homerun
2. Base Hit
3. Base Hit
4. Base Hit
5. Grand Slam
6. Base Hit.
7. Homerun.