I AM UNWORTHY! I have recited the proper names of the D-shells 10 times through as penance. Scrub out That Which Shall Not Be Named Again and insert whatever descriptive term you prefer. Some marketer got to the manuals and put in That Which Shall Not Be Named Again, and the 3B2 is my first introduction to that particular format. I have been instructed in the mysteries and now know the proper terms to use.