I think DYE's will make mages much more op.
Imagine a sps 3 reb acu , apella 100%(for the+4 wit) lf and +4/5 wit from DYE...will be insane from my point of view.
Maybe will be ok if will be dye with a limit, like max +2 .
I m not worry about fighters,mage will benefit the most of it