I have bermuda grass (Tifsport) that was put down as sod at the beginning of this past Summer. I over-seeded the grass 3 weeks ago and there are areas that the seed came in very thick and other areas that came in very thin. I have 2500 square feet of grass and used a 25lb bag of perennial seed purchased from the local nursery. All areas have been tested and are receiving the proper amount of water. I did not use any topping on the seed and have not fertilized yet. Location is Henderson Nevada, temp is 70's during day and low to mid 60's at night. Should I put down more seed or is it still to early to tell? Thanks!!!