First off, I don't think the Appeal's Council attaches any major significance to the amount of times a case is sent back to them. (Did all four appeals even occur after you filed the second application?) They're not emotionally invested in the process like you are. Most of the time they're not even deciding the merit of a case, they're simply ruling on the application of the law.

I'm just not as convinced as you are that the ALJ will only be concerned with that one issue. It's much safer to be over prepared unnecessarily, than for you to be blind sided at the hearing. The best way for you to prepare is to read through your entire file and read as much as possible about the process. It could include doctors notes or reports you've never seen, btw. Or, it could be missing documents...that is not uncommon.

Having your credibility questioned can make the difference between approval and denial. Read the following two links. The advise there is important for anyone going to an ALJ hearing.

http://www.disabled-world.com/disabi...redibility.php

http://www.nolo.com/legal-encycloped...y-hearing.html