I want to test {{subject_line_or_body}} on my list {{list_name}}, and only that one variable. Draft two versions that differ in nothing else, create two sequences in Hunter, and split my verified contacts evenly between them, at least 50 per side, or tell me the list is too small for the result to mean anything. Leave both for my review. Once the sends finish, I'll come back and ask you to compare them by reply rate.