Well, he is quite light. He many have another dilutor gene that is giving him that is washing out the patterns.
Cuckoo and barring both have the same barring gene. The difference is how fast the feathers grow. The fast growing feathers make wider black that white on the feathers and are often more a "vee" across the feather than a straight line the. The slow growing feathers result in the white and black to be about equal in width and a strait line across the feathers.
Yes, I would say these are cuckoo since you don't have straght lines, or equal white and black.