Three click helped me aljttle for fsb's off speed not so much. The timing isn't the same for the same pitch from the same pitcher. If someone sits on 102 id love it, because i could time it consistently. Batting is just having the feel for when to swing. I whiff, I swing super early on curves and I chase into the dirt. But I also hit at least 1 hr a game. I play small ball, (my luck its always a 2 out rally though). You already found your answer, just use directional. Use what works. I switch between all three when I slump. Swing timing is the issue right? Well just work on that with directional.
What helped me the most is that if I was early I would offset the pci 25/75 (inside/outside the ball) that would allow me to swing at the same time but the bat takes longer to come around.
coming up with this made me start considering push and pull hitters too. Pull hitters swing early and push hitters swing late. Now imagine the effect on timing. So make sure you know your line up, and structure it so you can keep track.
Last thing Jean you told someone that they are bad and need practice, when the op stated they suck, and no matter what couldnt improve. The op is seeking help, i.e. trying to get better. If the op can adapt to the system there is one less person to complain about the system. Instead of putting the op down share your personal approach and help another member of your community that is on the verge of quitting a game that they love(d). Im not trying to insult you or anything, just give my perspective.