It might, but I assure you it does not mean a 6000 spine. That wouldn't hold up to more than about 5# draw weight at 10" length.

OK, I just got off the CI website. The charts are pretty blurry for me, but it looks like any of the 6000 shafts are around a 400 spine. Hard for me to tell. Maybe somebody with better eyes.

In other words the lighter spines arrows seem to start at 1000 and go up from there as the arrow spine gets stiffer.