If theres a disagreement between two parties then it obviously necessitates a third to resolve this difference.
It just seems to me though there is no way to determine truth from Scripture alone as opinions are like noses, to use an old euphemism
no one single individual is perfect all the time and therefore everyone needs correction...if one doesnt accept these two as plainly obvious through reason and experience then there really isnt much left to say anyway.
The issue is not the warrant for the teaching office, and for synods to settle disputes, which Westminster itself affirms as being Scriptural, but that an infallible magisterium is essential for this, for determination of assurance of Truth.
Do you understand this is your position?
Yes I understand that is my position.