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Brian (BDub) and I co-wrote the material. It's a project we started working on together back when we were both DM's and contemplating becoming instructors.jbd:I'm reasonably familiar with NWGrateful Diver's materials and highly recommend him and the course he teaches. I don't know BDub, but if he worked closely with NWGrateful Diver in creating his course material then IMO he would be a good choice also. AOW really is very instructor dependent regarding the quality of the class and Bob and Brian would be top notch choices for anyone wanting a quality course.