What changes would you like to see in 4th job skills?

Did you add in SE for both Bowmaster and Marksman? Don't think you did, and I also think both of those classes have better alternatives.

Boomerang Step is an alternative mob skill for Shadowers.

Dragon Fury is DEFINITELY better and more stable than SP + Avenger. Not even including Berserk.

Doesn't charge blow have elemental advantage?

Inferno With SE: 282%
Inferno With SE and Adv: 423%
Blizzard still sucks the same. Pierce needs to be charged too long to be practical in many cases.

Boomerang Step only hits four monsters at max. %DPS is almost the same as Avenger for a single target. It's lower though.

Charge Blow was a bad example.

Dragon Fury is only more stable because they don't have Critical and they have Beholder.

Pirate mob skills are a joke for damage until Corsairs get Torpedo.