Are you using this dish in combination with a motor? or is this a stationary setup?
To tell you the truth, you really don't need those marking to set up your dish. I would recommend that you follow the setup instructions in
Sadoun's website. Move around the dish till you get a good signal and tighten the nuts and bolts.
If you have a motor system, then it is more important to get you latitude correct, and then play around with your dish elevation. I found that my 80 cm dish had to be 5 units higher than what the calculator called for. Others have experienced the same thing.