1. The gilding on the connectors is flawed.
2. Plastic is too sensitive to heat, so it is not suitable for modifications. Or be extremely careful.
3. Pins 1 and 3 on the xlr connector are connected. This can negatively affect the sound in some combinations.
The negative phase of the signal is connected to ground.
Be aware of that.
4. The wire is copper, dark copper, this can be an indicator of oxidation. Which is also not good.
5. Now I'm going to order Neutrik connectors and assemble a quality cable.
Apart from that, it's a phenomenal cable :D
