Any "Sub-Ohm" device (tank/rda/rta/rdta) by design is a juice guzzler due to the heat they produce, at 30watts and you are sucking down 30ml of juice a day, I'd step the wattage down and up your nic level to compensate. IMO "Fused" Claptons are carppy to begin with, they are not as efficient as you think, they burn through batteries and juice due to wire mass, batteries the power needed to get them to function properly, and juice, especially with you using Nichrome, after firing they still are hot and cooking juice, that is just how Nichrome functions, especially with claptons and fused claptons. You might re-think your builds, if standard round wire doesn't work for you and needing that much surface area on the wire to get any flavor, might try a couple twisted wire builds, just twist two wires tightly together in a single straight strand, then wrap your coil, effectively stepping down to a dual wire coil instead of the fused clapton triple wire coil, will lower your wattage requirement cosiderable, especially if you are using 24awg as your fused clapton cores, moving to a 26awg twisted is far more efficient and power conservative. A tighter, less airflow tank design or choking your airflow down also promotes more flavor and a warmer vape needing less watts as well, also a tank/device with a narrower vape/coil chamber also promotes flavor, remember more airflow and more air in the vape dilutes the flavor down drastically.
If you are for instance on a 3mg juice with your current setup, and needing to chain vape constantly, up it to a 6mg should in theory cut your juice consumption in half because you are getter 2x the nic out of the juice per volume being vaped, throat hit will also be up, but manageable with adjusting more airflow, and you will not need to vape as often, if on a 12mg do not step up to a 24mg unless you step down the wattage to 1/3 what you are now and move to a MTL instead of a D2L setup you are currently using. If you are needing to see bigger clouds, try some of the suggestions above, if you are not needing clouds, then try moving to a MTL device like a Kayfun or such, using a 1.2 to 1.8ohm 28awg wire coil in the 8 to 15watts range, with a higher nic juice like a 12mg if you are currently on a 3mg, MTL devices sip at juice and generally have stellar flavor profiles compared to a sub-ohm RTA device and need less power to achieve it, needing a warmer vape from one, shut the airflow down a bit and up the wattage about 2 to 3 more watts.
It all depends on how you are wanting your vape
Have the cake and nothing else, continue as you are
Have just the ice cream and nothing else, continue as you are
Have the cake and the ice cream as well, have to figure out what you need to change to achieve it.
Remember having a device to adjust to your needs is what majority of devices out there do these days, but also have to remember, you have to adjust to the device's limitations as well, just like being married, it is still a compromise between you and the device/devices you use.
