You said:

"... recent studies are suggesting to me that this link may often be acting through the rapid changes in the acceleration of the Earth in space which take place several times a month ..."

Do you have any evidence for these "rapid changes"? GPS is based on knowing absolute location of receivers in an inertial reference to within mm's, but I don't recall suggestions of even miniscule resolved discrepant displacement, let alone forces strong enough to compete with the tides in acceleration. Length of day has minor variations, but it would be news to me if the stress change from these climate-related shifts had significant magnitude.

If you are asking for comments, start by specifying what studies and how large are the "rapid changes in the acceleration" compared to the tides.

"earthquake triggering is often linked with the positions of the sun and the moon in the sky"
and
"I am NOT talking about any type of ocean or Solid Earth tide"
are contradictory statements if we are talking about gravity. You mean Sunshine or moonshine warming the Earth? Missiles from Sunlings and moonlings flung at the Earthlings?

John