I agree tanks felt the least worked on from all the jobs and the gauge either made things more boring and of a chore and standardized things too much.

This would be a good way to make things interesting. Personally, I'd like something for DRKs that we saw a the job quests. If the edge got too out of hand, you'd risk dying but your damage went through the roof.

Basically the higher the gauge is the more dmg it does but if it gets too high you either take more damage or damage yourself this way.