As most of you know we sold thousands of these shafts the past 6 years. There was a time period when some shafts were being mis-marked, we found some 5575 labeled as 3555 etc. I think it was shafts made back in 2006. I do not remember for sure.
I believe that this was corrected shortly after discovery as we found none after those few batches were found.
I will add that the quality of the Gold Tip shafts has improved during the past couple of years.
There is a difference in weight between the camo, trads and black shafts. The same spine shaft will shoot is differently (black, camo, trad) due in part to the weight difference in the shafts.