This is one area where me and my esteeemed colleague JeffB may or may not differ after he has shot the CT a while.
I cannot argue that the tolerances on the Whitetail CT that I have may in fact live up to their billing. I have no way of scientifically measuring them. My problem is that I found them to be rather fragile when compared to some other carbons that I have shot. I am willing to give them the benefit of the doubt, I could have had a "bad batch". However any further testing will not be on my dime.
After fletching up a dozen, one of the first arrows I shot ricochetted off of a foam target into the ground (that is a g-r-o-u-n-d, soil, dirt, Mother Earth if you will with the absence ofa hardsubstance we call rock. When I picked up the arrow it was split at the nock end. I thought that was rather unusual but again I was willing to over look it even though I have bounced a Carbon Express, Gold tip, Axisandothers in similar fashion with no damage. But hey, I could have been fooled and perhaps the angle, collision, or a combination of both was more violent than what it appeared. A few weeks later I did the same thing again, guess what, the same split showed up in the same spot. I suppose I should mention that these arrows were not abused just in case someone thinks I may have beat up on them and weakened their spine. The last straw came when I shot one into a piece of fir. Notice I didn't spell fir with a "U". That is fir as in wood. Yep, the same split showed up in the same spot. That arrow put the three strike rule in motion...Three strikes and you're out!
I have a board in my basement I call the "wall of fame". It is astout 3/4 inch sheet of plywood that is decorated with manyburied heads of various manufacturers in the archery industry. Most of those heads were shot with the same singlearrow a Carbon express CX. If I were to have used my Carbon Tech Whitetail CTs I would have run out of arrows long before I ran out of broadheads.