... The 40 meter trap is placed closest to the feedpoint at about 32 feet. Walter K5KNE
Not sure what Butternut HF9V that you are referring to in the post as the entire antenna is only 26' tall.
Adding some more wire the antenna can work on 80M, 40M, and 160M.
Walter, believe that you are thinking about another antenna. One doesn't have to add any wire to operate 40M and 80M with the HF9V.