There are only a "handful" (3- Long Cut, Short Cut, Attoyac Cut) of actual boatlanes on Rayburn. (It is not like Toledo.) Most of the Rayburn ones are north of 147 Bridge and above San Augustine Park (Attoyac). If you don't plan to fish that far north then you would be wasting your money. Below those areas there are hazardous areas but they are not separated out with boatlanes.
Come on, Ron. You trying confuse these non locals?
S. A. Park side is Ayish, maybe you meant Jackson Hill?
Boat Lanes chip is actually very helpful on the Ayish arm. Miller, Buck Bay, Lane, Owl, etc.
It amazes me all the guys I see running those areas with no idea of what's under the water.