I know it works too, but I've been in situations where the right eye relief was not a position I could hold for long and I had to take what I could get, as far as eye relief. In other words, sometimes in the field, the only position you can squirm into is not one you've practiced. It's funny, some people poo-poo the idea of an AO by saying they don't want to mess around with another adjustment that removes a source of error, but they'll put up with a different compromise that takes just as long and restricts eye relief to a narrow band in order to reduce that same error. To each his own.
