Ok I ran some GCH with my guild as CH/WL as dps.
Here are my observations about dpsing as CH/WL. First Skills observations. This is with Soul Forge Mystery+60 and Forge active.
These are some number I gathered while attacking Plump Hares lvl 70-72 in the Ancient Kingdom of Rorazan
Electrocution +72 hits for about 43k (non Crit) and 61k crit
Dark Energy Strike +72 hits for about 37k + 2500 dark magic damage (non crit) and 53k + 2500 dark magic damage (crit)
Rune Siphon +72 hit for about 27k + 1800 dark magic damage and healed 2554 life (non crit) and 40k + 1800 dark magic damage and healed 2554 life (crit)
Energy Influx Strike + 64 29k (non crit) and 41k(crit)
Heavy Bash +67 30k (non crit) and 41k (crit)
Rune Pulse +72 74k (non crit) and 105k (crit)
Fearless Blow (below 30% health) 51k (non crit) 73k (crit)
Cycling in buffs from Forge, Soul Forge Mystery, Indomitable Spirit, and Heart Collection Rune don't make a huge difference in damage for my gear level.
My Stats
Strength 7772
Damage 15827
DPS (from Weapon) 2773.1
Attack Power 40056
Critical Hit 1930
Accuracy 2797
I tried changing my magic attack power also to see if it would change my dark damage dealt and used Dark energy punishment. I saw no increase in dark damage. Either it has no effect or I did not have enough to show a difference.
For a good baseline I'm comparing this to CH/R
ShadowStab+64 AGI portion of damage 39k (non cirt) and 55k (crit). STR portion of damage 22k (non crit) and 30k (crit)
Shadow Pulse+70 44k (non crit) and 62k (crit)
From what I can see as dps while I was in GCH. During burn phases CH/WL seems to fail. Its tough even with Lute, Endless Pulse, Warp Charge, and Strong Stimulent I did not seem to build enough rage to sustain a solid dps rotation. The only thing nice with CH/WL is it can handled being under geared with the attack power boost from Dark Energy Punishment. It also has enough self healing that in most fights, as long as I stayed away from Endless Pulse, I could live until a healer could group heal.
I'll try CH/R tonight in GCH if they have a spot to carry me in.