@dgarretson The reference made to the Bocchino Products has been very useful, as I have been collecting information about suppliers of suitable Copper Connectors for my ongoing Projects being produced.
I have been demonstrated WBT - Low Eddy RCA Connectors used on a Phonostage Chassis and used on a very expensive RCA Phono Cable as a A/B comparison to the Manufacturers selected connector.
The WBT - Low Eddy configuration was in my view exceptional and stood out as the most attractive during the demonstrations.
The 'envelope' of the note and vocal when being presented via the Low Eddy connection was seemingly tangible, definitely traceble at it manifested.
This was one of the moments when there was no doubt, it was something to be aspired to.
I can see from your Post you are quite willing to find a way to improve on your Circuits selected components, I am very comfortable with such practices and am sure you are receiving the best of the benefits.
When my Phon' was produced for me, I had a input to the choice of certain components beyond the Designer/Builders selection. I purchased and gave them up for exchanges. Evaluations were only to take place after a 100ish hours of usage, achieved through using the Phon', via, a Hagerman Reverse RIAA and CDP on repeat play.
The outcome of the Component exchanges as a comparison to the original Spec' was substantial, even the designer was unable to contain their thoughts and were appraising the positive impression made to the SQ.