It seems that perhaps the best thing would be to simply take him and have him re-tested. Perhaps I should wait another six months just to see if these things re-emerge.
Thank you for your input.
If he seems to be doing well and he's not having trouble with anxiety or attention, it seems like it would make sense to wait a little bit and then reassess. It would give him even more time to mature and may make the answer a more clear cut one.
I hope you find some answers. It is frustrating to be in limbo.