You don't need to lower pitcher consistency to get more walks; put control and consistency at 7 with strike frequency at default and the CPU is pretty much as wild as it could be and throws way too many balls, and racks up far too many wild pitches. Consistency and control work in tamdem and are not completely separate entities, there's a shared dependence with the 2 sliders. Plus, you need to raise consistency because the wild pitches are too high.
From the stats, solid hits will lower/increase hit totals and is very powerful unlike last year where it didn't affect hit totals at all. Solid hits at 0 on Legend completely cripples offenses. I would say lowering contact a notch will increase swings and misses a touch while increasing Ks a touch, which were a tad low. I would say go only as low as 4 with contact because the CPU chases enough at 3 on Legend and you're on All-Star. Timing is a less powerful slider than contact and should slightly increase swings and misses and slightly reduce foul balls per each notch. You do have the foul ball frequency slider though for that.
I don't really have an idea to change the ground ball to fly ball ratio though.