Big Bud Vision seeds

has anyone ever grown big bud before? Just wondering if its a relatively big plant or not. I had 5 seeds ak 49 auto (which is growing) 2 died and i have 3 left. 1 could be strawberry cough and the other could be big bud. 1 plant is just growing and growing getting so tall and the other seems to be the same height as the ak maybe a little bigger. Just wanted to know if there was a way to differentiate.
 
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