Aneros different models and super Os

This will be a question for all aneros users who **have** super Os or dry prostate orgasms.

I am a user with no problems on having prostate pleasure. After inserting my aneros, I start feeling pleasure almost immediately from the prostate stimulation.
I also have moments where I feel pleasure that starts from my prostate and it goes in waves to all my body. That makes me think I am in the verge of a super O but never realy had one. Or even a dry orgasm, by that matter.
When my prostate is really stimulated, I get really aroused and I can have a normal ejeculatory orgasm if I want to, withou touching myself.
At this point, there is a question that pops in my mind: what if other aneros model would be more suited for me? We are all anatomically slightly different. But at the some time, maybe this is just me thinking that there is some kind of magical shortcut, other models wouldn’t make a difference and the key for having a super O is to keep doing what I am doing.

Nevertheless, I would like to ask: people who have super Os, dry orgasms, what model do you use? Do you have different models? Can you achieve super Os with one model and not with other or do you think it makes no difference?
I’m just curious, thanks in advance.

Erections ruining big O

There are people who try out aneros and don’t feel anything and there are others who easily get big Os on the first try. I would guess most people fall in between these two extreme examples. I think I’m someone who doesn’t have any difficulty on feeling pleasure.
A little background about me… I bought an aneros helix some years ago, like, 7 years ago. I tried it and right from the first time, I felt a lot of pleasure from it. To be honest, the pleasure starts right when I let got the aneros and it touchs my prostate when it accomates by itself.
I have a lot of P waves, a lot of what I think people call mini Os. I can control my sphincter and my kegel muscles easily. If I want, I can successively contract those muscles, which lead to a normal but very pleasurable orgasm with ejaculation. I can even get an orgasm without having the aneros inserted and without using my hands, only contracting those muscles (it takes me some minutes to do it).
But the truth is that I never had a big O.
If i didn’t feel anything while using the aneros, I would think “well, I must be doing something wrong”. But I feel a lot of stuff, so, that’s not the case. I even think that maybe there were times when I was really close of getting one but never got it.
So, I stopped using aneros for no particular reason.
Some days ago, out of nowhere, I remembered to go get my aneros. Again, I started having pleasure almost instantly after the insertion. I had a great session. So great that I did it again some days after the first one.
And for the first time, I think I started having a big O. But as the pleasure intensified, only after some seconds I got an erection and it led to an amazing orgasm with ejaculation, but it ended that starting big O.
When I think about it, during a session, each time I have pleasure, I get an erection. I am a person who gets an erection quite easily. But on those videos with people having a big O, they don’t seem to be having an erection and they maintain the focus on their prostate.