No, the Blueberry Watermelon - RAZ TN9000 is unsuitable for sub-ohm vaping. It is designed explicitly for high-nicotine e-liquids, such as Salt-Nic, and is optimized for a mouth-to-lung (MTL) vaping experience. Attempting to use the Blueberry Watermelon - RAZ TN9000 for sub-ohm vaping may damage the device or cause unsatisfactory performance. For the best vaping experience, we recommend using the Blueberry Watermelon - RAZ TN9000 as intended, with high-nicotine e-liquids and MTL vaping techniques. This ensures optimal flavor, vapor production, and overall satisfaction with your vaping experience.