rod mix-up? question

update....after buying a cheap 4"x4" gram scale,which seems to be working pretty good right now,all the rods weigh in the same range from each other.All around 753 grams +/- 5 grams with the small ends within 5 grams of each other.Seems the rods are all within spec of each other which isn't totally suprising since there are all the HD rods.