Really wondering why all radar controllers don't have some sort of weather representation these days... The technology must exist as some have it, and it makes life much easier for everyone involved.
Back to the original question, I will request heading xxx when I have the time and/or I would like to avoid, and this only if the situation allows. I will state that I require heading xxx when continuing is completely unacceptable, but never turn before I get a reply.
S.