I drunkenly ordered a cage off AliExpress and now it’s here for me to try discreetly on my own… I have it on and am enjoying the feeling but could definitely use some guidance. Here’s a few initial questions

1. I started on one of the larger rings at first, couldn’t figure out how to get everything through a smaller one (maybe was too excited). But later managed to swap out for a smaller ring. Is it expected to work down to smaller and smaller rings over time? Or do you find the size for your body and stick with it?
2. I’m pretty small when soft but grow quite a bit when erect. I got a medium size and it’s tough width wise to squeeze all the way in (esp when a little bit excited) but when I’m soft I’m nowhere near the end of the cage. I’m considering buying a nano size instead… is that too big of a jump?
3. When putting on should I make sure the head gets all the way to the end? Or just squeeze it on until it latches and then the rest will work itself out.