I think I could learn just about anything from him

I have had several different instructors over the years, but I have to say that David was the easiest to follow of all of them. Most have their specialty, but David seems to be master of all. I think I could learn just about anything from him and his teaching style. Great choice to bring him on as an instructor. I have adult ADD and it was never an issue while he taught.

Glenn Dahmer (OTA Worldwide)