One adjudicator's decision is not binding on another.
Of the three cases cited one, the third, was decided in the appellant's favour because the authority's evidence was unreadable. In the other two, the phrase 'in the circumstances of the case' or equivalent leaps out.
Your circumstances are not the same. You did not see another CPZ sign and we don't know which route you took.
Therefore, under the particular circumstances of this case, I am not satisfied that a contravention took place and this Appeal is allowed.
In those circumstances, whilst a contravention occurred, I take the view that the signage was not fit for purpose and so I allow the appeal.
Much of the council's map evidence at 'H' is blurred and unintelligible and on none of it can I identify zone entry points. It may well be that Hodford Road junction with Golders Green Road is not in fact a CPZ entry point but I cannot be satisfied on the council's case that it has established that its CPZ is clearly and correctly signed at its entry points and I accordingly find that the contravention has not been proved.The council's duty in law is to place and maintain '..on or near the road of such traffic signs in such positions as the order making authority may consider requisite for securing that adequate information as to the effect of the order is made available to persons using the road;'
Because appellants are in the main the equivalent of litigants in person and not legally trained, the tribunal extends to them what would otherwise be denied to a qualified lawyer i.e. they tolerate references only to cases which support their appeal and which ignore perhaps a body of contrary decisions.
Here's Hodford on the ETA register for the last few years. I suggest you look through these decisions and where the circumstances are the same create two columns of appeals allowed and refused. Then decide whether you would want to risk the discount by taking your case all the way.
https://londontribunals.org.uk/ords/pwslive/f?p=14952:60:10303268843615:pg_R_12214301622549612:NO&pg_min_row=16&pg_max_rows=15&pg_rows_fetched=15