These are both boards from a 128K/512K, not an original Plus board.

I see you have not replaced the brown film capacitors in the high voltage circuit, the filter caps and the axials.

C5, C9 and C18 are not original and have been replaced earlier. Are these values right ?

As for variations for inline measurements when you compare with your other board: difference should be less than 15%, otherwise something isn't right.

Do an ESR test on all your capacitors as even new one's are occasionally faulty, eventhough very rare but I have seen it.