I shot 2 arrows....
one was a 370 Grain Carbon Force with a 100 grain tip and 4" offset Duravanes and the other was the same arrow, same length, same tip with a Turbo Nock.
---
The Turbo Nocked arrow was 25 grains heavier...
You mean Turbo nocks outweigh 3, 4" vanes and a standard nock by 25 grains?? If you don't mind my asking, what's the FOC for those two arrows?