Per TJ's coaching, I looked at the renovator and found that I could raise the coulters 2 1/2 inches. So I did. Next time I use it I will have it level and I agree with his assumption that it should be level. Looking at the cutting tips, that makes sense.
I got out my "mickey mouse" owners manual that came with it and it was totally CYA. All it talked about was safety pretty much. So much for the Philadelphia lawyers.