Possibly found cheaper elsewhere but:
https://www.erecaidpumps.com/timm-medical-osbon-erecaid-erection-tension-rings/

Not on Amazon.

Well that is a very weak tri-mix. Very much a beginner mix. You can go a lot stronger.

They're certainly good reliable starting areas. With your experience you should be able to expand the range a bit. I'll use 2 to 4 and 8 to 10.

In what way has it had a significant effect on the relationship? Ok, I'll opine: It depends on the woman. The varity is bewildering. Some can't seem to get over no longer being the cause of the erection. Of course they still are, they're why we're injecting, or whatever ED solution is being used. S...

Well I just did my first evaluation run with Trimix and I must say it was a success... Got some 5/16" and made sure I had several hours to myself to inject and deal with the repercussions, if any... I decided to go with 2 units to be ridiculously careful... So actually, I think I stumbled onto...

I don't know how big a part this plays in your situation but: The heavy hitter in tri-mix is usually the alprostadil (PGE1) and it loses potency rapidly if only refrigerated and very rapidly at roon temperature. How greatly this effects your mix will depend on to what extent the alprostadil plays in...

I guess I'll elaborate a bit. I'm well into year 12 on injections. They still work great. I'll guesstimate. Lets see, 12 years of at least 2 times a week and a lot at 3 times a week. And some exceptions on the low side. So, 52 X 2 = 104 X 12 = 1248 plus I'll guess on the low side 3 times a week (I t...

Yeah, worth it to me.

Reasonable us of a VED is probably a good idea if you aren't getting natural erection, including nocturnal erections.

Welcome to the forum, I think. Since you seem to primarily be asking an implant related question perhaps this thread would be more appropriate in the "Implants" sub-forum. Or since you also seem to be trolling for others interested in your particular kink, perhaps it would be better placed...