This is an unimportant issue that should be low on the priority lists, but it'd be nice to see it fixed up. The tier 3 Free Agent favor is a repair service from Jadiene Forgemaiden which has reduced perma chance at the in exchange for a much bigger repair fee. When first introduced this was fairly valuable, as many players with nice weapons would take care to use the better repairs to ensure it doesn't wear out.
But when the Stone of Change was introduced in module 6, the mechanics for item damage were changed so that bound items had no chance of permanent damage while being repaired. That eliminated the majority of the need for expert repair service: rare raid items no longer needed it, and even generic items wouldn't need it if you simply decided to bind it. The only items that'd need it were those few things that are very valuable, but yet you still wanted to keep the flexibility of sending it away later. Then in module 7, the addition of Alchemical Force Damage Rituals gave further incentive to bind weapons and make the service useless.
The problem is in two parts:
1. The expert repair service still charges a lot more for bound items, even though it provides no benefit.
2. Free Agent favor has hardly any attraction to players. (Tier 1&2 are also nearly useless, as they just provide thief tools that you can get on auction better)
Suggestion to fix it:
1. Regardless of the repair mode chosen, bound items will have the normal cost to repair.
2. Give Jadeine Forgemaiden (and possibly other "master crafter" NPCs) some additional dialog options only usable at tier 3 Free Agent favor, for services such as Expert Weapon Tuning.
Expert Weapon Tuning: 500 pp, selected weapon gains a 25% chance (per hit) of +1 damage for 12 hours.
Master Weapon Tuning: 1500 pp, selected weapon gains a 50% chance of +1 damage for 12 hours.
Legendary Weapon Tuning: 3000 pp, selected weapon gains a 75% chance of +1 damage for 12 hours.
Expert Shield Tuning: 300 pp, selected shield gains a 25% chance (per attack) of +1 AC for 12 hours.
Master Shield Tuning: 900 pp, selected shield gains a 50% chance of +1 AC for 12 hours.
Legendary Shield Tuning: 1800 pp, selected shield gains a 75% chance of +1 AC for 12 hours.