Do I Have to Sign a Ticket?

Will it do me any good not to sign the citation?

Generally no it will not do you any good. Whether or not you sign the citation you will be in court someday. If you drive off without signing the citation the officer may obtain a warrant for your arrest for charges related to the citation. With the warrant there are usually more financial charges incurred than the cost of the citation alone if you were found guilty. Charges such as vehicle impound if you are found driving a vehicle while having a warrant, higher bail amounts than the citation itself, and even bail bondsman charges should you use a bail bondsman. There will also be the fact you will have an arrest record now.

Is it worth it to go to court to fight a citation?

I like to answer yes to this question. What is the worst that can happen? The judge finds you guilty and you pay the full amount of the citation. If you go into the court prepared (not expecting) to be found guilty then it would not come as a surprise. If you are found guilty the judge has the option to lower the fine if he chooses. Who knows maybe you will be found not guilty and the citation goes away all together. There is also the chance the officer does not make it to court. In that event the prosecution has no witnesses and the judge must find you not guilty.

Conclusion

You should sign the citation. If you disagree with the citation take the matter to court and fight it out there. You can present your own evidence and you do not have to suffer the consequences of being jailed. Of course you can make your own decision, but in my opinion it is just not worth it in the long run.