<p>Given that </p>

<ul>
<li><p>it is acceptable to:</p>

<p>- post more than one answer,</p>

<p>- delete an answer you deem no longer adequate,</p>

<p>and that </p></li>
<li><p>a complete rewrite is essentially identical (in the experience of an ordinary user) to deleting an inadequate answer and then posting a second better answer,</p></li>
</ul>

<p>then I can't see any major issue in simply completely rewriting, as long as the question and other answers still all make sense by doing so.</p>

<p>However, if some parts of other questions or answers (and to some extent, substantive comments) would look odd thereby, then it would be best to at least mention your answer changed substantially (indeed, I think it's usually a good idea in any case). </p>

<p>Further if any part of the question, other answers or comments led you to change your answer, you should acknowledge that contribution.</p>
