@ricevs Thank You for this info, and for offering to make available info to give guidance.
You set off my inquisitive side, strange that it is, as 90% of my listening is carried out with ESL’s creating the sound.
My Speakers are a Design with Audax Drivers HD-3P - HM130 CO - HM210CO
There is controversy about my having successfully filled the HD-3P to hold its charge of air.
Some say I have not controlled the fill pressure and some say the charge should be Nitrogen.
I say I have not heard a Tweeter has captured my attention for being attractive like this one, especially in the condition I have created, I have felt compelled to buy another pair and have them on standby to incorporated into being used with the ESL’s.
Back to being inquisitive, Typically a X over is placed within a Cabinet and less traditionally it has its place outside of the Cabinet.
One might suggest the outside of the Cabinet as a design, is classed as an upgrade to keep cabinet conditions from impacting on the X over.
Your idea of Hardwiring the the Voice Coil is a Bypass, or Shortest Route without connections in the signal path.
Can that be taken a stage further and have the X over mounted as short a distance as Possible from the Voice Coil.
An interesting reference to PC Triple C wire are you yet familiarised ?