did an early session with the 16 mm peridise unit and it was the same as reported before–did a later session with the 20 mm peridise and not much different–decided to wear it under my clothes while watching tv, etc and did so for an hr or so but then remembered a post about not acclimating our bodies to the stimulation by using it too much as the body would take less and less notice of it so i removed it–nothing new to report–still can get things going but no earth shaking orgasm nor endless self propelling strings of them either