Thanks. I have and read the same references. The question in the article states: Is “the twentieth year” mentioned in these two verses counted from the same reference point? The way I read it, and others too, there is a four months difference not of the same year. Therefore it could not be "the same reference point"
The question was somewhat rephrased in the "Treasures from God's word" It asks the question this way: "Why can we conclude that the 20th year mentioned......is counted from the same starting point? These two questions lead to different conclusions.
When someone says 'Starting point' it is definite, whereas 'reference point' it is variable.