I did provide a solution, in fact I said "What you can do to address the issue" - my response was honest and upfront. That style terminal has literally been a KnuKonceptz product since day 1. We've changed only the screw finish in 7 years and every year we sell a lot of that model. Out of the number sold we hear about a problem maybe 8 times in a year on that model.
Now I understand your issue, if you'd like to take a digital caliper to your optima's post we can see what might be the cause. As i said in my email, looking at a logical stand point getting one defect, I could see, but the chances of two that come from different cases in our factory makes the odds very steep. If more people are truly having issues, I'd like to know. If we need to get shims for Optima's thats something to consider. As I mentioned, it is very rare to hear about an issue with that model. If Optima is making terminals with smaller posts then everyone else, that would really be something for everyone to know about...
And you never replied back to my resonse- again I can not resolve anything with out communication. PLEASE if you have a problem, contact us!