I just received my NutriBullet 900 last week and have made two smoothies. Both of them have leaked and made a horrible mess of the kitchen. I have small hands so tightening the lid is a challenge to begin with and removing the lid is even more so. I think I would really love using this if it didn't get more smoothie on my cabinets than in my cup... Any suggestions on how to stop the leaking? I check to make sure the lid is on completely and evenly before I turn it upside down, it isn't past the max line, and there is plenty of room in the cup for things to move around as needed.