synopsis: single or double spaced

Hi all. I didn't know where to post this question, so thought I'd post it here since it deals with my YA book. I'm submitting the first 1,000 words for a contest (see link below, for anyone else interested) and they're also requesting a one-page synopsis.

Well, I'm very proud that I got this thing into a one-page summary but shriek at the thought of having to whittle it down further if I have to make the synopsis double spaced - it's now single spaced.

The entry rules don't specify single or double and, reading several blogs and other assorted info sources, I find that some say it's Ok for single spaced, others claim double spaced is best. My manuscript submission is, of course, double spaced.

So if anyone can help on this matter, I'd certainly appreciate it.

http://www.smartwriters.com/

many thanks

After I posted, I reviewed remarks from a former writing instructor, who is published, who said the single spaced synopsis is standard - double space it if you are expecting it to be critiqued.

Many thanks!