You still didn't answer my question. But anyway, not much of a conversation possible here. I agree with you that mmcx connectors are prone to issues.
I did answer your question, but I didn't say what you wanted to read.
You asked if I had the Trio and if I had tried replacing the cable on them and the answer to those questions is irrelevant because the answer I previously gave you is universally true, whether it's the Kumitate Trio, a KZ or other chifi IEM with removable cable or a Moondrop Blessing IEM.
Cables only impact, at most, the impedance (ie: the volume or, in some cases, how forward sounding high and low frequencies are) of the sound reaching your ears. Provided the MMCX connectors are not broken, you will get the same sound quality from a $20 cable as you will from a $1000 one.
The issues you are describing, and this is the last time I will say this, are a result of the connector of one of your cables connectors' either being overused or damaged in some way. You can not get more detail out of
any headphone by changing a cable.
If you want people to give you honest answers you need to be comfortable in accepting answers you might not want to hear, but if you want someone to recommend you purchase a cable that costs as much as a cheap second-hand car to solve an issue that you've mischaracterized, then you should have said so from the start.
There are many reasons to spend more money on a better cable: better build quality, customization, comfort, less microphonics, etc. Audio quality is not one of them.
If you believe otherwise, more power to you, I am not trying to stop you from enjoying your audio products in whichever way you prefer but I am not in the business of selling snake oil to others.
I hope you manage to solve your issue, and I hope you'll consider my sincere advice before making a needless expensive purchase.