Gauss Barrel and Wanderers Minuet is not a fun mechanic. I may have a solution!
I'm sorry to speak out openly about this for I'm sure I will have some who will disagree on this issue. It's just not a attractive mechanic and completely changes the game play when these two classes reach level 52. It's just plain boring, unattractive and takes away from being a unique set of classes into a RNG mage based class with a set of visual unappealing sets of skills.
I for one want to enjoy these two classes but since we already have a 1.5sec global cooldown it really makes the gameplay slow and boring when you add cast times into the mix. I'm sure we can offer a better solution to this issue? May I offer one for you?
Guass Barrel/Wanderers Minuet
Gain unique abilities when activated.
Increases damage done by 20% when standing still for 4 secs. Last 8 secs.
Wouldn't that sound like more of a viable solution?