You are welcome to go along with the standard thought that HPS is the way to go.
SanClem stated the case for halides over and over and over to you all; ie; that halide has more USEABLE light for the plants. I have confirmed SanClems assertions by using both types side by side. "Flowers" are NOT what you are trying to grow, BUDS are! Flowers are NOT buds! Buds are VEGATIVE growth.
THC amount is product of genetics, not the type of light used.