Female led relationships discussion

Hi everyone, I need some advice from experienced chastity device wearers. I’ll try to as briefly as possible trace my history with devices. My first purchase was a CB-3000. While this is aesthetically nice, I could pull out of it easily. What was worse, it was fairly easy to make myself cum. So my next step was to get pierced (8 gauge frenum) and I ordered a Lori’s spiral. This seemed a step up at first - really secure, no way to pull out once locked on. However, I could still make myself cum. It seems that for some reason I can cum when not nearly fully hard if I try. Next I saw that someone had a spiral with bars placed across the end. This seemed like it might work since the head of my penis swelled out of the end of the spiral when I was trying to cum - maybe this would be the anwer. Instead of investing time and money getting bars installed, I decided on a “proof of concept” - I taped the end of the spiral closed with scotch tape before installing it. (By the way, this is when I took the pictures in my profile album - you can see the tape on the end.) This helped, but with great effort I was still able to cum. My final step was a homemade device like the cb-3000 but MUCH shorter and tighter, using my frenum piercing to avoid pull-out. Again, able to cum. Right now my girlfriend has me on the “honor” system, which works for now but she is really disappointed with not being able to lock me up. Is there anyone out there with similar experiences to mine that found the “perfect” device? My choices as I see them are:

1. forget the device and remain on the honor system, disappointing my girlfriend/mistress.
2. try get a still smaller lori’s spiral cage part only - smaller diameter and even shorter, with bars.
3. order a more expensive but possibly more secure Lori’s device, like the #9
4. experiement with a homemade #12 for a proof of concept - if this works then order a Lori’s #12
5. full chastity belt - extremely expensive, probably not practical for daily wear (I’m a runner), and also probably impossible to resell if it doesn’t work While I’m not eager to spend a ton of money, I would spend whatever it takes in a second if I KNEW that it would be a totally secure and wearable option. Anyone with a #9 device out there with similar “houdini-like” qualities that can attest to it’s security? Any advice? HELP! Thank you so much for your time, ~spiraled1