In the past eight months that I've used clear eGo Mega Dual Coil Cartomizers I've only had two or three faulty ones. And these things are built tough, not at all like the smaller clear cartomizers. This morning I filled a new clear one with Pineapple Pulp, started vaping, and immediately noticed cracks in two spots going the entire circumference of the cartomizer. Masking tape didn't help. I vaped as much as I could before it completely disintegrated in my hand. I reluctantly tossed it and began filling an old one that I had cleaned and about 20 drops in I noticed cracking at the top of the cartomizer. The juice itself tastes great, really great. Has anyone else ever experienced such a large amount of cracking after filling with a particular juice? Very strange. I do have some black metal EMDCCs that I intend to use.