I am currenttly bidding a job that the owners want 2 ferts spring and fall, crabgrass preventer, broadleaf controll, and fall overseeding. I was thinking of dimenson w/ fert in the spring, overseeding in the fall. I am not sure of when i should do the broadleaf. If i do it in the spring will this open up to many bare spot for weeds to take growth? I know the dimenson will take care of some, but will it all year? Plus the fact of it just lookin funny with a bunch of bare spots. If i do it in the fall i am not so sure about useing the broadleaf right before overseeding. Maybe broadleaf in like aug/sept and overseed in like oct With only doing 2 ferts what n-p-k would you you guys recomend and when?