It seems you and I are doing the same thing! I started at All Star and dropped back down to Pro because I was getting killed. I went back up to All Star because I felt the CPU pitched more intelligently and wanted to try Jistic's sliders. They worked out very well for me. I made a few minor tweaks (mainly to the Human contact/power sliders) because I'm not real great at hitting yet.
Anyhow, these sliders play very well from my experience. Good job Jistic!