Figment

Just moved to Greensboro from Las Vegas. Tried four shops so far, but can't seem to find a decent juice. One had organic, bland flavors. The other three made me cough and tasted awful by the end of the first day. Have been vaping for three years, no trouble before. I can start mail order from my shop in vegas, but would love to find a local source. my questions are 1) What could be different about the juice here, and what should I be looking for in a juice? 2) Does anyone know where I can find a quality juice in Greensboro? Thanks for reading.