so usually i use MH for Veg and hps for all of flowering. This time i used 2 MH and 1 HPS for the first half before switching the MH out for HPS. now for the second half (4 wks in ) there all HPS. will this mess up my grow. how can i expect the fact i forgot to switch out two lights untill 4 weeks going to effect my buds and yeild?