I have Basic version M size from the very beginning. It’s stp I was looking for a long time. Modular construction is so perfect. Funnel is very easy to use, no leaks, perfect. I bought original version size S to get full stp packer with movable testicles. I wanted to have smaller packer but not scrotum. That is why I give one star less. For me scrotum with testicles in S size is too small like for normal adult person.
