Norm, I am only a first year beekeeper myself, so understand that anything I say comes from very little experience. However, I have heard that you should leave the excluder off until the bees have a good start on drawing out the comb. Otherwise they will never pass through the excluder to start drawing it out. Your message sounded like you put on the excluder when you added the super of undrawn foundation (is that correct?). I dont know if this is the cause of your lack of honey, but something to think about anyway. Replies from someone who has a bit more experience and knowledge would be appreciated.