Bag Seed (Heighth - Yeild)

If you take a random bag seed and veg it to 12in. and flower it, and then it will be about 24in. what is the yeild roughly on a 2 ft plants dried.

1 to 8 oz is all i ever get any way i grow per plant.

I think there are way to many variables to say really. Ive had bag that i veg to 48" and only got 2oz and others veg to 18" and get 2-3oz keepin all the nutes and lights the same. Mainly do you know the exact strain you are getting in the bag?

this is a picture a few days ago from my 12/12 grow



this is today before breakfast.
at day 53. 3 of these monsters are 48" right now I just measured. and the left front one is just 20".