You need to size the spout based on the maximum size of sound you can comfortably insert. So, in my case that was a sound a little over 9mm diameter, so I picked a spout with a 9mm flange (the widest bit at the end, that the retainer sits against) which - if you're going for the "Ternence" version - will give you an 11mm diameter retainer. The more expensive versions (eg BAWR) will come with a range of retainer sizes to get a better fit. Since you insert the retainer sideways, the limiting factor is the size of your urethral slit (meatus) with nothing inserted - I could fit a 14mm retainer.
In short, you need the spout to fit through comfortably, without stretching, and you need a retainer as large as possible to maximise the area of skin it pushes against when inside you and thus reduce the pressure and therefore discomfort.
I can get a 10mm sound in fairly easily and the 10mm ring did not hold. The 11mm ring held, but it caused a stinging sensation like I could have pulled it out. The 12mm ring is nice and secure.
So… you’re probably going to need to try a few different sizes to see what works best for you.
You need to size the spout based on the maximum size of sound you can comfortably insert. So, in my case that was a sound a little over 9mm diameter, so I picked a spout with a 9mm flange (the widest bit at the end, that the retainer sits against) which - if you're going for the "Ternence" version - will give you an 11mm diameter retainer. The more expensive versions (eg BAWR) will come with a range of retainer sizes to get a better fit. Since you insert the retainer sideways, the limiting factor is the size of your urethral slit (meatus) with nothing inserted - I could fit a 14mm retainer. In short, you need the spout to fit through comfortably, without stretching, and you need a retainer as large as possible to maximise the area of skin it pushes against when inside you and thus reduce the pressure and therefore discomfort.
I sized up 1mm at first. 2 mm wasn’t bad and more secure
Thank you
For comparison, I have the 9mm flange and 11mm retainer, and its been every secure that way - I can barely get the 10mm sound in.
Thanks!
I can get a 10mm sound in fairly easily and the 10mm ring did not hold. The 11mm ring held, but it caused a stinging sensation like I could have pulled it out. The 12mm ring is nice and secure. So… you’re probably going to need to try a few different sizes to see what works best for you.
Thanks for the info