Has anyone tested to see if the following stack?
Assume: AA Tier 5, elven cleric/arti
Warpriest tiers I-V
Righteous Weapons: When wielding your religion's favored weapon, it gains +1 to its Enhancement Bonus.
Arcane Archer tier V
Runebow: Bows you wield gain an additional +2 enhancement bonus. This is considered a Magic Weapon effect.
Artificer lvl 1
Enchant Weapon infusion
With an eThornlord or upgraded Pinion at +8, is it possible to attain: 8 (bow) + 5 (righteous weapon) + 2 (runebow) + 1 (enchant weapon) = +16 enhancement bonus?