I make two recipes using key lime by TFA, the % of lime in them is 2 and 3%. They have both steeped for over 2 weeks. When vaping them they are absolutely wonderful for the first 3 or 4 vapes. Then they start getting a harshness and burning in the throat. I've played around with both and if I make them without the lime they are good, no harshness or burning feeling, but are lacking due to the absence of the lime. I increased the other flavors so I'm still mixing at the same strength. Any suggestions