After our lawn had more and more turns into a weed desert and I had mediocre success with the Aldi / Baumarkt-cheap-grass mixtures, I have now resorted to the "leader". Floor according to the instructions prepared (but without the week waiting period) flattened with the roll, sown lawn with Rollsäer, again rolled over it, Wolf fertilizer on it and already after 2 weeks you can see first very even grass with surprisingly high growth density sprout! I am now hopeful to come without too much chemistry back to a nice and uniform lawn!