^ This
That way it still costs a feat and the feat is well worth it. Though you may still need to tone it down to half Dex mod.
To all those complaining: Where exactly is a dex based buff (aside from ship buffs) in same relative scope to STR based buffs?
To the contrapositive of Dex grants XYZ and STR only grants AB....keep in mind when you build for STR you also dump dex if you dont need a caster stat...so you chose to have those low reflex saves and wield weapons that do greater base weapon damage (and usually higher crit profiles/multipliers) than the finesse-able weapons.
If a feat were available that converted STR mod to reflex saves....would you even use it?
Since you are bound by MDB, it would be moot to try and create a feat to add more AC (lest Barbs become the highest AC class in the game, the irony)
Fact of the matter is: DEX finesse builds want something to bring them into the same general zipcode of STR builds. When there are no buffs, AC does not matter/make a difference (without seriously gimping yourself) in epic content and a failed/successful reflex save is merely the difference of Heal or no Heal, where is there a balance?