Heavy shade after 10 am. The soil is very sandy below a layer of OM that someone used in the last renovation. The ph is about 6. I'm throwing some dolomitic at about 25#'s/K and starter. I've never worked with TTTF but have learned from supplier that it is the best in shade trials and from some of the folks on here. I heard not to fertilize in the summer but what about during grow-in? Who has experience with making a great TTTF lawn?