Let's digress though ... balance by improving other classes / races
I'd like Uncanny dodge to be passive, not active. Why make it a clicky? Let's just do it.
Let's get Barbs an Amp line and boost their DR AP capabilities. Let other classes do the % reduction whatever; lets give the Barb more DR options via AP.
Give some weapons innate bonuses to tactics.
Un-nerf tactics for non-monks.
Add hammers to dwarven lines
There's several threads on elves/drow/halflings
Make AC a viable defense ... give folks multiple paths for damage mitigation (DR, the % reduction like earth stance/shield mastery, self healing ... AND AC).
Even out the Shield Mastery benefits (currently front loaded). Add a Shield Evasion / Shield Ward option that allows for bonuses to some saves but requires the Improved Shield Mastery as a pre-req.
etc.