yeah you want seeds that are dark brown with black spots on them. Yes grey and white looking seed are not optimum. but try it and see what happens!!!! GOOD LUCK!!!!!!
I use nothing but hps from veg to harvest. and i have had not problems. i know what you are saying with the light sectrum and the 2 lights but i think that the hps is fine. and i would just go ahead and finish this grow and experiment next grow.