You can definitely make 26/26 claptons, but it might be hard to fit into your rda unless the post holes are huge like the El Cabron size. if your going dual, consider a sleeper. Also the space between the actual coil wire and the cotton might create hot spotting and harsher throat hit. That's just my opinion though, I haven't actually tried a 26/26 Clapton before. I prefer 36-40 gauge because it holds more
juice (in my opinion), evens out the "popping" and keeps the cotton closer to the core wire, which gives me a smooth vape