More split does give you more steering. I run mine about .75 split and I like the feel. We have a tight track where the high speed corners are all left so my front left and rear left tires wear more than the rights. But little change front to back so the split stays the same over 8 min. So I can run the same set of tires as long as I swap them from side to side for the mains then run a new set ( or trued) for the mains. While most on our track have gone to the green/blue combo I just tried Magenta/purple and I can now flow better through the corners but the car rotates through the center mass and not the rear tires.