Help on WWsin

[Xeth]

Trying to make a good PvP/PvM ww sin but i'm having trouble with skill points. I've been hearing alot that assasins can not use venom/burst, others say that's wrong you can't use Fade + burst. Here is my build I'm currently working on, I've looked at the c/c hybrid guide but i didn't see him mention anything about those bugs.

Build:
20Claw mastery
20dragonclaw
20Venom
10Claw block
5Burst of speed
5fade
20Shadow master<--last to max using rest of skill points
rest into pre req.

Equip:
Shako/w 5/5poi faucet
Chaos(df mod)
fury(2fade/2clawmastery)
33/21 bramble
Gore riders
Trangs Gloves
Maras +30
dual leech ring/ravenfrost
ravenfrost
P-Dungos
100dpcs/shadow gc's

Also, Does poi charm damage stack with venom/ does it get bonuses from the +poi skill from bramble ect? Should I put any points into a matrial arts skill? like phoenix strike? Oh, and What would be better if that bug did exist for fade/burst what's a better choice? Fade or Burst? I know that fade has res+dr but would a faster attack be better?