I just noticed that whenMichael Tarallo changed my answer that had been marked Correct to Helpful I retained the original 10 points for Correctand got an additional 5 for his marking my answer to Helpful, which is good for point chasing.
Michael was right to do so as his answer did answer the original question, whereas mine answered a sub question. But it would be good etiquette for Moderators to explain any such changes they do with their elevated rights.
Thanks for your participation and contribution, it is most valuable and we appreciate it.
I did not take the points into perspective, just the context of the question and answer. (Moderators who mark their own requests as helpful or correct, do not receive points, only when others mark them).
In regards to explaining the change, it will be noted to add clarity to the "responders"