Preventing potential Super-O's from becoming Super T's?

Hello! I resumed my journey to the Super-O with the Helix Syn awhile back, and have been having way more success than the last times I attempted. I'm at the point where I can reliably get mini-O's, and I believe I got the closest to a true Super-O last session. I changed it up this time by inserting the Helix Syn, and started out sitting in a chair while viewing erotica. I didn't stimulate my penis, other than putting on a condom, and occasionally replacing it as the session went on as the majority of the time my penis remains completely soft, even during mini-O's.

The reason for the condom is that I've found as I've successfully been able to build more and more pleasure, I've also gotten better at recognizing the feelings that would indicate an ejaculation is about to happen. I would build the cycle up completely hands-free, but when I recognize the subtle movements at the peak of pleasure that are the precursor's to ejaculation, I release all tension and stave it off to avoid the refractory period. The problem is, every time I uncover a new feeling or reach a new peak of pleasure, I still am often taken by surprise by a sudden ejaculation/Super-T. While this has definitely is an incredibly pleasurable ending to the session, the problem is, it's still and ending. It happens often enough that I'm starting to think I need to try something different to settle in to the repeated non-ejaculatory Super-O's.

In this last session, I stayed in the chair and continually built larger and larger mini-O's, at times feeling like 1-2 minute full orgasms with no ejaculation or refractory periods. The combination of the erotica, and with gentle rocking motions on the chair continued to be successful. Eventually my knee started to cramp from the constant flexing in the seated position and trying to push my body through the back of my chair, so I moved back to the bed, laying on my back with legs down, as I've had issues in the past where laying on my side or stomach would cause the head of my penis to brush against the bed, often triggering the Super-T.

In this instance, laying on my back, again with no penile stimulation, I was able to slip back into the same mindset and build the larger and larger mini-O's purely through the stimulation from the Aneros. I kept reaching higher peaks, with the sweat literally beading and pouring off at me, and finally my penis starting to become erect after being soft the entire session, but each time I felt like I was going to reach a new height, I felt like I was going to ejaculate so I immediately relaxed. I could usually resume the same cycle within a few seconds, but kept worrying about an unwanted ejaculation. Finally I decided to just go for it and see if I was wrong, as this progress was new and I didn't want to hold back, and I had far and away the strongest orgasm I've ever had. It checked a lot of boxes from the wiki; full-body, otherworldy, overwhelming. I am usually able to stay quiet during my sessions but I started gasping, almost gagging as every muscle in my body was flexed and it even got scary for a moment that it was going to high and not subsiding. I felt the ejaculation feelings starting again and chose not to try to hold them off, and again with no penile stimulation I had the hardest Super-T I've ever experienced. Not sure what I looked like because I had almost pushed myself up into the air my arms and legs were so flexed, and afterwards I almost passed out. I probably laid there another 10 minutes, sweating, before I could get the energy to roll over and clean up.

While this was definitely awesome, unexpected ejaculations I still feel are holding me back. Is there a technique to keeping the mini-O's and pleasure building focused in a way to avoid ejaculation? I know everyone's journey is different, but one of the big deltas I noticed from the Milestones in the Aneros wiki is I typically remain completely soft the entire time, unless I'm nearing an ejaculation point.

Thanks for any advice!