Thanks for posting your report, I haven't walked those hills for twelve years, so it brought back some good memories.
In one of the photos on your blog, number 29 unless I lost count, captioned Moel Hebog, it looks like some sort of a bridge has been laid over the pool that is unavoidable on the way to Moel yr Ogof after the path through the chasm? I have got wet feet there a few times in the past!