I have caster pills on top only, they are set in the positive position. Unless I want to buy more caster pills, I can’t add any more caster. I have 2 Birel karts, the other Birel has the tie rods mounted the inner position, the steering feels lighter and yes I have to crank the wheel a bit more, but it doesn’t wear me out like this one does. Like I said, if this doesn’t give me the desired effects, it is a simple nut and bolt job to put it back like it was with no money spent. I’ll see what happens the next time I go out.