I know that if I was facing a murder rap, I would fight it in court. There are certain things that don't merit wasting the court's time. A speeding ticket, where you are guilty, and you know it, but want to waste everybodies time doing so, is frivolous. Say what you want, but that is my opinion (and it appears, many others here.....)
The fact that there are websites that tell you how to "beat" a ticket doesn't impress me much. There are websites that tell pedophiles where to hunt for children, I'm sure. Doesn't make them right, now does it?!?!
I know that there are "countermeasures" to beating radar, photo-radar, whatever. Do I buy them (other than the radar-detector I had about 15 years ago, but I had to shit-can because they are banned in 99% of jurisdictions, it seems)???? No. I don't want to put my money into someone else's pocket for something that is there to beat systems that try to get people to slow the fook down. Law enforcement personnel are doing exactly that: enforcing laws that we, the people, want. Speed kills, we all know that. Excessive speed is a waste of fuel, which is why governments imposed certain speed limits during the oil crisis in the 70's.
I have heard/seen too many barrack-block lawyers, and the civy variants, go on about how to beat tickets: mail in a cheque for 50 cents over the fine, and "they" can't process it because it isn't the exact amount. Ask about the calibration of the radar gun (as you mentioned). Mail in a photo of the amount of the fine in cash (the best, urban legend no doubt) response from the police was a photo of a pair of handcuffs). And the list goes on.
Sure, fill your boots, take a day off work (if on the clock, it can cost you plenty) to fight the Man. I won't be there to stop you, nor will I be there to support you.
BTW, I am in the process of being investigated for harassment at work. I am "fighting" it, because I am innocent. I didn't bend over, and say thank you very much, Sir. There is a time and a place to take your stand against injustice. But, if I were guilty, I would have saved everybody the time (and believe me, there are many man-hours of work involved in this process) and said "Guilty, as charged" and taken my punishment. If you think that is being, well, whatever you want to call it, so be it. I have my own guidelines and principles that I follow. That's what allows me to sleep at night.
Al