Sorry for the late response. You definitely want to do the declaration before you take it to court. This way you get two shots at winning. Oh by the way ask for as many extensions as you can get first. This is very important. The longer you draw this out the better chances you have. Here is a link with a bunch of templates for your declaration.
http://www.ticketassassin.com/docs/forms.html
Your template should be example one under "basic speed law" 22350. My last two tickets didn't involve radar, instead the officer paced me. Those templates are not on this list, but I have those too.