Assume you have done your Research and are knowledgeable, capable and safe in doing your own builds?
But yes, go to an Organic Cotton.
IF you know how and can build knowledgably and safely, stick with Dual Coil and use a 24-26 gauge A-1 Kanthal. Do a 8/9 Wrap on the 26 or a 9/10 on the 24 trying for around .8-.9 ohm. That should give you a nice robust density Cloud and satisfying Flavor as well. The goal being to be sure and satisfy your initial Nic/Physical Needs as well as Psychological Proclivities to prevent becoming disenchanted & craving a return to the Coffin-Nails.
At first, stick with the 18 Nic to give the Body what it is used to being careful not to hit it too hard and/or too often so as not to get a Nic OD reaction. Then once into it all, reduce from there as you wish and are satisfied with.
24 can blow ya head clean off using a Dripper if you're not careful (spoken from personal experience)
In the end, you should not be re-wicking or re-coiling that often enough to make you frustrated. I have a Fogger v4.1 RTA for Bedside use (dripping is a Beech lying down) and love it. But, I rebuild it about every 3-4 weeks as it requires a 28 ga wire build which gets old quick and it gets gunked up easily as most Tanks/RTAs will do. I don't re-coil or re-wick my RBAs much more often than that. Far from enough to make it a PITA anyways.
I think there is something out of whack with your Build and/or your Material.