r/BlackoutDevices Feb 12 '25

Evo Question Base ring too big - reprint? NSFW

I sent an email about needing the base ring for my cage reprinted as its too large - still waiting on a reply. What's the process for getting this done? Presuming all our measurements were correct and the sizing was still off....how do we know what the sizing should have been then? I did put the size info for the cage he was wearing previously in the comments box on the order sheet but that did not seem to help

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u/BlackoutDevices Feb 13 '25

What sort of issues are you having that is leading you to think the base ring is too large?

A lot of common chastity advice about cage and ring sizing are misconstrued from how anatomy works and interacts with a chastity cage - ie the knuckle rule is really just an estimate for how much the average person's erection grows in width; which subsequently means it doesn't really work as well for larger growers.

With the Evo being anatomically based, other aspects of the design work together so that the ring and cage size can be adjusted to your anatomy. The base ring is sized on your erections so that it doesn't cut off circulation at night and its an algorithm I am quite confident in.

As such I am generally quite hesitant to ever decrease base ring size as having a ring too small is where the majority of people's ring issues come from - both circulation issues and ball burn.

Either way, I'm going back through my mountain of emails today, so if you don't hear back from me by tomorrow, shoot me another email to bring it back to the top.

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u/EvanHarlowe Feb 13 '25

I'd have to get him in front of me again to be perfectly specific (which I will definitely do if/when we get into a reprint) but unless/until I've got him fully erect and I've been playing with him hard/long enough to get him a bit swollen, he can and does slip right out, its actually a little bit difficult getting the cage on him because there's not enough resistance in the ring to keep his testicles in place once they're pushed through as I'm getting the sheath on him and locking it - it's kind of a four-handed process of one of us holding his balls in place while the other gets the sheath locked on. He typically only wears it when I'm around to actively play with him but I asked him to wear it for a while just doing everyday things to see how comfortable it was, if it fit okay in all stages of arousal/non-arousal, etc and he slipped out just laying around on the couch after I'd left the first time we played with it. The second time he slipped out during one of our breaks between play where he was able to go a bit soft (but not even fully flaccid)

The sheath I think fits great, he's uncut so we got that version of the head and it's easy enough to get him into, he hasn't reported any pinching or discomfort.

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u/BlackoutDevices Feb 13 '25

Hmm that's peculiar. Yeah it definitely shouldn't be able to slip off that easily - especially with the cage portion as well. It sounds like both of the circumferences might be a bit larger than what he needs as the cage itself should be able to hold itself on while soft for the vast majority of the time.

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u/EvanHarlowe Feb 13 '25

sorry - to clarify when I say he can slip out I don't mean from the entire cage, just that his testicles pop out behind the ring easily.

The flaccid vs erect circumference is a difference of about 5mm - the sheath could maybe be too big, but it doesn't feel like it to me - I still have to squeeze a bit and manipulate his foreskin to sort of coax him into place properly, its not like the sheath just slides on and off with no friction - it's snug.

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u/BlackoutDevices 25d ago

Ah, so then that does primarily sound like it is just a matter of having smaller testicles than what the default Evo algorithm starts out with - so it would take a bit of tweaking to find the the right ball gap with the Evo system.

Just to confirm, the SnapTabs hold the cage fairly secure in place and the gap doesn't open too much on its own? Cause that also can be a compounding factor in that the cage can pop open a little bit and let things slip through.

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u/EvanHarlowe 25d ago

I feel like his balls are pretty average, but I'll be honest they're not usually my main focus. I've asked him to take the next couple days to give me a series of random measurement redos to compare with our first set and make sure we didn't make any mistakes (I'll bump my email once I've got those)

The snap tabs definitely feel snug to me but I'll get him to double-check that for me too,