Well, using a 50 inch TV is brutal. But use strike zone 1 camera — it’s way easier to track the ball out of the hand. Always use the normal swing (can do contact swing too, if you’re desperate). Try to slow your thumb down and not get jerky.
For PCI, whatever floats your boat. I just use a middle fishbowl, nothing else. I find it intrusive. Experiment.
You’ll learn quickly what pitches you struggle with, you’ll notice opponent tendencies. Personally, I like to start high-middle inside, or keep my PCI on the pitcher’s hand. Inside sinkers are the meta to end all meta. If you’re offline, I’d stick to veteran difficulty, then work towards all-star.