Should I buy Wurmslayer?

[Wibo49]

I'm a level 24 Bar War. I currently have a Jarsath Trident and a Green Jade Broadsword. I really enjoy tradeskill and selling, so I've been making a lot of money doing blacksmithing and killing gargoyles. I was just wondering if it would be a sensible investment to upgrade my primary to a Wurmslayer. It had a much better ratio, though the delay is nearly twice my current weapons. Would this increase my damage, and help me kill things faster? Thanks.