[REQ] Trix Cereal Clone Desperate need of help

Ok so heres the latest on this… I let my friends have at this recipe and they both said the same thing: Not harsh. Now they both vape 3mg and I only vape 1mg. They wondered if the nic was the difference but the harshness Im getting isnt from a throat hit but rather in my lungs. Anyone have any thoughts as to why I feel it but they dont?