To be honest when first started fishing choke I was really intimadated by fishing the main lake.... I decided to break the lake down in sections and I felt comfortable up river and started there picking differnt types of cover/stucture apart and as I caught more fish I began to venture out to the main lake over time....
All I can say is put in the time out there to learn the lake, I spent days out there graphing and marking the lake and still end up coming back home skunked or nothing but dinks at times...
I myself have found choke to be a lake where if u have an area that is holding fish u must slow down and pick it apart until u turn them on, its painful to do sometimes but it pays off!!!! If ur crankin, try different colors, retrieves, profile of the bait, and angles that ur castin.... Fish some channels that swing next to points and flats that have timber on them, same thing with pond dams or a hump!!!!
Hope some of my mumbo jumbo helps ya out!!! keeps us posted how u do!!!!