Thanks for requesting me. I believe I answered a similar question for you recently. I'm not sure if this pertains to the same incident, or if it's something different.
I hate to be the bearer of bad news, but if the trooper says he saw you change lanes without signaling on 5 occasions in 16 miles, that will be difficult to beat. If he were to say he saw you do it once, that would certainly be easier for you to fight.
As I described in my answer to your previous question, the only successful "defense" to changing lanes without using a turn signal that I observed in the years that I prosecuted traffic cases was the avoidance of an emergency of some sort - i.e., an impending accident (for instance, the car in the next lane started to move over on you), an obstruction in the roadway (for instance, I once saw a living room chair fall off a pickup truck in front of me while I was driving on the interstate), an animal running across the road in front of your car, and things of that nature.
I wish I could give you a more optimistic answer, but, I hope you've found this to be informative, anyway.