So we tested these at 30, 40, and 50kph, the watt savings range is compared to DeFeet Aireator socks of same cuff height. Both DeFeet and Specialized also make fully knit aero socks, both with ~1mm vertical ribbing around the entire circumference of the sock, so my vision here was to just knit the turbulators into the sock right ahead of the separation zone and leave the front of the sock smooth. This leaves us a watt or 2 better than those two, but still a watt or 2 behind something like the Castelli Speed or Aerocoach sock, which are both quite a bit taller.
My vision here was for an everyday aero sock… so it’s not just some full on TT item, but rather a sock that is every bit as nice as the nicest socks from the top brands, but with an added aero advantage over. It’s an aero sock for all the days that you aren’t wearing aero socks 
We’ve tested these at both ARC and A2 and found repeatable savings across multiple riders in both instances.