SCAT Rods Weight Variation

I had a set of Eagle rods that 4 rods were heavier than the other 4 rods,
I called Eagle and they said they don't make the heavier rods any more and they couldn't match the lighter ones so I had to send them all back to Summit and bought Scat rods, never bought Eagle rods again, It was probably Summit just putting single rods together to make a set.