Yeah doing a double clark was easy than doing one lemon and olive oil! To drink them separately is torcher! I blend the grapefruit and oil (organic refrigerated cold pressed from flora is the company) in a blender then suck it down with a straw. You don't taste it when you drink through the straw as much only when you stop sucking. Then I go straight to bed and take like two exlax. I wake up and get a good amount of stones out. this works for me. I doing it tonight!