Rectifier Roadster and other manuals state the 4x12’s are wired series/parallel.
“Series/parallel” is two series pairs, in parallel at the jack. That has been settled for years. It is accepted at Rig-Talk, The Gear Page, Metropolous Forum, TDPRI, just about everywhere, including Celestion dot com.
I custom wire all of my cabs, and my stained birch 4x12 has a switch to go from S/P to P/S. It’s only one wire, as in the brilliant Randall Aiken’s diagram. There is a very big difference in tone, and feel. Even Dave Friedman can’t make up which way he prefers...though his much lauded and beloved 4x12 comes series/parallel.
You assume much and come of as condescending, fyi, the both of you. Please refrain from commenting on this thread any further. You have offered nothing of value.