New Peridise user seeking guidance

I got the full set about a week and a half ago.

Basically, just push it in just enough to get the first bulb in and leave it there, let your butt do the rest. It usually ends up resting somewhere on the stick between the two small bumps and when you are contracting, it might slide just a bit on that.

It's all about the movement for me. It feels a lot like my a-less sessions, except much easier to have the involuntary contractions using the Peridise. The 18mm one is the sweet spot for me. The 16, 20, and 22 mm just don't do much for me.

I echo shockedwaves comments except for me the smallest device sends me to heavenly bliss! I pre- lube anal canal and coat Peridise with thin coating of Vaseline, then smother it in lube and insert. I just let it do its thing...within 10-15 minutes the pleasure begins...mostly "do nothing" but occassional gentle contraction to keep things going...YOU WONT BE DISAPPOINTED! I have SuperO'd with it a couple of times. ??

Awesome guys, thanks so much for your inputI'll be trying them out soon