I still have to find one, may be they drop from the last tier instances ? I never saw any in tier 1 and tier 2 instances, and crafted ones are really bad. So could you review the crafted belt and add some in the easy and moderate instances boxes ?
The crafted belts that you're calling 'really bad' are better then EM raid belts from last expansion if you use refined rares and that's BEFORE experimentation... so I'm not sure what you're using as a meter stick...
Thats my master-crafted refined boosted tank belt. And I'm very happy with it. Much better than my ToV fabled belt.
While it's not a raid item (assuming you're talking about the belt in your sig) it isn't a normal heroic drop either (rare chance from a mission's crate available every 9 days) and is indeed - slightly - better than EM ToV raid. Anyway, even without refining/experimenting MC belts are 450 STA, 9.8 CB/pot. Add the benefit to be able to choose which kind of belt fits your playstyle the best and the ability to put AoM adorns on them and MC is better than everything in ToV's heroic/EM raid. With refining and experimentation, it's better than anything droping in ToV. On a side note, belts do drop in AoM heroic instance. I'm sorry I can't remember in which (probably one of the pirate's instances)
Here is the potency belt. The master crafted is actually really good as long as you use refined rares and experiment on it.
Oh yeah i was wrong made myself this : http://u.eq2wire.com/item/index/2417735822 going for CB since food and vigor II make my stats drift a lot into potency.