Hi,
I got the peridise set whch includes the biggest and smallest unit, and been usijg them for a few months. I have read that the smaller is more pleasurable, but I just don't feel it.
So, I am wondering if it's best to use the larger unit for longer, or to persevere with the smaller unit until I start feeling it, or get the 4-item set to work on the "intermediate" ones.