They are the same head, same company makes them. The VPA Terminator is what 3-Rivers calls their Woodsman Elite series. Lower grain weights the heads are vented, starting around 150 - 160 gr. you can get a solid head. They are not a 3 to 1 ratio head. I use a VPA 250 gr. wide head with 50 gr. brass inserts on a GT shaft around 590 gr. total, shot from a 51 lb. recurve. you cannot beleive the the blood trails, tough heads,very easy to sharpen, I highly recommend them for a 3 blade head. RW.