It might be your pg/vg ratio. I have a streppy feeling and harshness when my vg/pg is below 80/20. I have a pg allergy and thats where the harshness comes from for me. Try coil butter or journey juice. Both are made with 90% or more vg only pg in it is in flavoring which isnt much. Journey juice is 99.7% vg where coil butter is around 92.5%. Sent from my LGLS665 using The Vapor Talk mobile app 30w and 50w refer to the capacity of the coilheads. Thats the highest the company recommends for a quality vape Sent from my LGLS665 using The Vapor Talk mobile app