Another thought: I used the 0-0-7.21 Dimension in Tn. The lawns are beautiful, think and green. In SC I used the same stuff at half-rate for the centipede. Would that be of any concern. I used the same Dimension last year on the centipede but was older grass and no problem just like this year. I was sorta thinking that maybe the .21 could have been a little too strong for the new sod. Any thoughts?