If it's ok, I revamped Jax slightly swapping out feats: Weapon Focus (which I forgot to include in my stats), and Greathorn (Minotaur Gore feat) which I had never used, in exchange for two Armor proficiencies to get me scalemail armor. I also dropped the Bloodcut property from my armor (doesn't work on scalemail) and took Reinforcing ability instead. Lastly, I swapped the Cloak of Resistance for an Amulet of Mental Resolve.
Results: AC is now 19 (goes to 20 if I'm damaged with melee attack), and my saves are +2 vs. Charm, Illusion, and Sleep.
[edit] Oh, and I changed a trained skill: Endurance no more, now I'm all Natural baby

Let me know if any of this is a problem.