howdy! and welcome!
couple quick questions, for clarification - looks like that mod will support either wattage (power) mode or temp control mode, depending on the coil you are using - if you are using the .5ohm kanthal coil, make sure you are in wattage mode - if you are using the .2ohm Ni coil, PLEASE make sure you are in temp control mode only (Ni coils should never be used in wattage/ power modes, only TC)... so, which coil are you using? also, what is the nic level on that juice (typically, i hear it referred to as juice, ejuice or eliquid - tend to avoid the word 'oil' as that is not only incorrect (no oil whatsoever should be vaped), it is misleading (and leads to claims of lipid based pulmonary issues))... to firebirds point, too high of a nic level (or too high of a pg level) can lead to a harsher vape