for me, I dropped sonic boom after using it for a while. It wasn't providing enough punch at all. Could barely (if at all) notice any damage from using it on the current mob I was targeted on. I know it's AOE damage, but still, it's lacking for running in Shipyard XP or boss runs.

Much better results to go with a direct damage skill for where you're at in the game now than to tickle a few mobs around you for minimal damage.