Like the title states, I am considering doing this by weight but do not know if this is the smartest. So say a pouch of white labs weighs 20 grams and I want a ratio of two yeasts at 70/30, do I just do the math involving weight or does volume make more sense? In theory a 70/30 blend would be 14 grams of one strain and 6 grams of the other. Does this all make sense or am I missing something. I am sure cell count factors in but just do not have enough experience to run this on my own without running it by everyone.

P.S the weights I used above were just random based on easy round numbers, I do not actually know how much yeast is in a pouch of white labs.