I've been meaning to ask this. The first flavor I tried a few months back was Chocolate Isolate. It was sweetened with Sucralose. The taste was just OK. The last 20 lbs of so I've bought have been Cinnamon Bun Isolate. The label states it is sweetened with Stevia. The flavor is freaking amazing. Have you switched all flavors to Stevia, or are you still using Artificial Sweeteners?