In reviewing the answers to How can I show the value of best practices? I developed, and wrote up, an answer that I think is good. Which isn't saying that the other answers are not. Then, when I went to post it (draft written locally), I realized one of the other answers was mine. (Oops.) The new answer is not an expansion of the first. It is a different view, and different solution. Both are not "short" answers, though they aren't big posts either.
Is it better to post the new idea as an update to the first answer, which isn't related in concept, or should I post a second answer to the question and allow the votes to decide which is better?