Cool like from Komar there with lots of good info actually but I’m not sure what exactly from that he was pointing to.
If indeed you are treating them exactly the same, yet seeing differences - I’d go more towards genetic differences between seeds, even if it’s the same strain it’s gonna have slight differences. The less stable the genetics are from the breeder, the more you’ll notice.
I just had two purple punches from seed going, and in veg the one looked real bad and was showing nitrogen toxicity and droopy/curly leaves (among other symptoms) The other one wasn’t showing any of those signs and growing much better than the other. I was giving them same feeed and same conditions.
PS Those buds are looking awesome in your diary!