Guild Wars 2

Im currently running 0/20/30/20/0 but my damage feels quite weak, would it be worth going 0/30/20/20/0 instead to get my damage up?

You can use that spec.

Your best bet is to link your build and gear from one of the calculator sites, and do a lot of forum reading.

Even with the best gear..play style will affect your results.

This is how Im currently built (with Berserkers Jewelry)

http://gw2skills.net/editor/?fYAQNAoaVlUmaP3cS6E+5ExmieuTuHO1oNtTBWtKA-jUxAYrASQAIKgpvioxWDLiGLA-w

Im just stuck between the health regen or whether should go for Hidden Killer to use backstab more effectively

Dump quick recovery and take hidden killer or executioner

This build can be used with S/D, D/D, and D/P, take your pick of which weapon set and enjoy:

http://gw2skills.net/editor/?fYAQNAoaVlUmaPHdy5E/5Ey2jdqCJKuHOlR1UdFwKA-jUyAYLBRiCIZBiIAk+KiGbfoIasqFMVJRUt3oIa1A-w

NOTE: If you’re using S/D, change Hidden Killer to Executioner. Also, you can optionally change the 10 points in Acrobatics to Deadly Arts for Mug for that little bit of extra burst on your steal and to guarantee a Basilisk Venom stun.