This sounds like it's too good to be true but they give you more on power steering but without unsettling the rear end. If you try them back to back you'll see what I mean
You'll just be faster with them on, I never ever consider taking them off, I run them high most of the time but low if I need more power on steering.
It moves the link out and even in the high position the ball will be lower than the std position with no washers in.