Just a quick note about rogerlike's comments:
From what I can see these chips were going to be used in a META42 amp he is in the process of building. The chips were working fine before I shipped them, so something must have happened between then and now. I completely understand where he's coming from, but I am in the same boat (I'm either out of money or out of working opamps).
I have positive feedback here as you can see, eBay, and also various photography forums. This is the first time anything like this has happened to me on here or elsewhere. I always make sure things are working before I ship them, and I even go as far as cleaning the item up if it needs it (e.g. dust).
I offered 50% because I would rather both of us have some level of satisfactory closure than to have the feelings lopsided.