Just bought an Aspire NXT. I am used to vaping 50/50 6 mg. regular juice. I am using the 50/50 in this device. I am finding I can barely inhale with it without choking. Its just too much. I have tried playing with the airflow and that does not help at all. Previously use a Vaporesso tank with a ceramic coil. at 20 watts. Should I be using 70/30 juice instead? would that help? I do not want to use Nic salt. Thank you.