I appreciate all your responses.
I had initially given some thought to it being electrical as well. I even went so far as to swap out the coils for another set I had here. I knew in my heart it wouldn't make a difference but I was grasping at straws. Let's think about it for a moment. If the bike runs well with the choke on, it's not going to be electrical.
If it ran like crap with the choke on, however, one might argue that the spark isn't hot enough to ignite the extra fuel and therefore decide it's an electrical issue. But that's not what is happening.
When I'm going down the road and it won't accelerate, I close the choke and it takes off. It's a fuel/vacuum problem. I have checked the valves: spot on. I have checked the compression: also good. Air leak is another option: I have eliminated the possibility. The plugs are all equally lean therefore it is something affecting the entire fuel delivery system, not any individual carb,
It is indeed puzzling and I am still not convinced I will find the problem. I will, however, find a solution.