I wanted to add about the baguanfa cups.
I have found I use these more and more! They are so easy to clean and to use and clients love them. My problem? Not enough of them! I work in two locations..... I would never have the size I needed at the place I was at. So... I just ordered 2 more sets.... I will have one set at one location, the 2 sets at my private office so that I can use 2 at the same time of the same size. (say working the back.... up and down the bladder channel. I will be able to do both sides)
however, I never use these cups stationary. I am not sure if that they are intended for use that way. I have clear cups for that purpose.