Does vodka work just as well?
Would it be a good idea to keep two in rotation? One in use, the other soaking until rotation?
Any vodka will work, the lower proof vodka's just have more water than the higher proof.
If you clean them often enough, soaking for hours is not necessary, if you go to long before a cleaning, soaking will do no good. It would take some work to get a mound of carbon off the coil, dry burning would work but its risky. once carbon starts to build up, it will continue to mound, the vodka helps break it down, you could try and pick it off after a soak but that carries a risk. If a majority of the coil is covered with carbon it will heat unevenly, it will vape like crap, leak, and probably taste burnt, just before it dies. I wish I could tell everyone exactly how often they should clean it but I cant, you have to figure it out on your own. The amount you vape and the juice you use creates a huge variable. There are so many options for juice and only god know whats in most of them. I cant be specific on any juice other than high VG content, high sugar, and dark juices will build up much quicker, how quick depends on how much and how hard you vape.
Cisco