Well if this is the whole story in full detail. Then i'm to assume that he didn't ask you about the recalibration test, that is if he wasn't a State Trooper and if they have changed the laws on that. What it looks like to me is his word against yours, true the judge may side with the officer if you have a known record of reckless driving, but you may have a chance. Just see if you can get a free consultation from a lawyer for a better or worst answer.