It may be a little premature to negatively comment on HQ results, but I have to say, so far on my new, end-game accessories, I'm 0/4, all with > 80% success rate, and, of course, I'm 0/4 on double downs.

Now, this could be just my lousy luck, or it could be something else. I'd be curious to know if others are experiencing the same sort of thing. I have not had this issue at all with materials HQ's.

Gathering HQ materials is painful enough, only to experience this degree of failure, against the odds, is discouraging, to say the least. I wish I had this sort of reverse success with my double stacked melds.