Just tested on my relatively fresh 60 (803 power, 120.4 DPS), against chillwind ravager (level 59).
Using mother of all builds, pvp variation.
Avg claw damage is 193 (4.8 per energy), shred is 319 (7.6 per energy).
So, again, yes, it is a huge damage difference, specially considering that the leveling build would have OoC procs as well.