Is this it or am I still hunting the key?

I have no idea what to expect out side of a normal ejaculation. ... It feels delightful, but I feel like there's more coming. ... The feeling is incredible, but I can't say it's explosive as I've read. It's pure bliss, and I feel like everything is perfect no matter what's going on in my life at that moment. However, the reason I refuse to accept this as the "super-o" is because it's not convulsive, I don't emit noises like everyone says, and I feel like there's something more there... Like I'm missing out on the grand finale. I feel like if it was the Super-O, I would know, or I would not expect something stronger.

Yeah, I know how that feels, early on in my Aneros journey (I'm more than 11 years in now) I had those exact same sensations and found my self doubting whether or not I was having Super-O's. I have never experienced the massive body quaking spasms some men report though I did have occasional strong large muscle twitches in my arms and legs. I've also not experienced much spontaneous vocalizations beyond the occasional moan or sigh. Almost all of my Super-O's are of the "Calm Seas of Orgasm" type, otherworldly blissful floating in a pool of ecstasy.

From your description of sensations, it sounds like you are indeed having Super-O's. Please read the Super-O definition several times to let it sink in, especially the last line ->

The Super-O is very personal and different for each individual.

I think many men miss their own Super-O's because of their expectations of something else, be it stronger, more explosive, more spasmodic, more vocal, etc. Reading about other men's experiences may be interesting and even titillating but it can fill you with expectations about sensations which may never occur for you thus leaving you frustrated and disappointed with your own experience. This is your ego interfering with the pleasure you sub-conscious, prostate and body naturally generate for you. Trying to compare your experience to others may seem like a natural thing to do and it is but it really serves no purpose. It only creates 'mind noise' which overshadows what your body is trying to provide. When you finally "Just Let Go !" and accept that your path and Super-O's are unique to you and need not be compared to anyone else's, then your ego will stop prodding you for something more. The something more "on the other side" may then show up on this side ! The Aneros journey is an evolving adventure with no end point to the journey and each man's adventure is unique to his circumstances.
Good Vibes to You !

In my case I had Super-O's for a while and just didn't realise, because they weren't as cracked up as I expected them to be. That's the fault of my overblown expectations, which grew from many community anecdotes describing how amazing the sensation was.

Otherwise some of my best moments with Aneros ironically happened with no toy inside. It was purely through mental approach, learning to build and focus arousal. The most amazing Aneros session I last had, I think, was also because it felt like a "first time" moment on breaking open the fantasy floodgates. It was a sort of surreal moment of physical pleasure controlling what I was thinking, whereas traditionally it's the reverse for me, where horny thoughts develop pleasure. It stopped suddenly because I didn't want the loud moaning to be noticeable.

As much as it was a first-time high, I do think arousal building from Aneros stimulation was a moment of clarity on what to 'aim' for. Touching nipples causes erotic thoughts to just happen, not unlike edging. I haven't had that sort of thing happen with the Aneros since, I don't think; prostate sensitivity in general seems to of died down over the years.

Hi @TheFyre13, perhaps this allegory from an earlier post of mine may help you over your next hurdle:

... if you can manage to fully focus on the apple you just are eating, you got it. If anyone else eats an equal apple, he can do it without any focus and without savoring it. Thus he might miss all the great sensual pleasures of a conscious degusting and envy you for your apple. But it's not the apple. It's the magic moment of enjoyment you made of it.

Good vibes to you on your journey.
Mart