RIV is one of the 'special items' that comes with the best buy version of the game....just in case it was not stated prior to this.
And this just in... the sky is blue!
I suppose it's possible there were a few people following this thread that did not know that. But I have to think this would rank as some of the most obvious 'non-news' information about Tribbles you could mention at this point.
I've managed to get one drop of it, off Romulans, At Commander 10.
On another note: Is anyone else having breeding irregularities?
I've done MATTSON+ROMULAN ALE 4 times. I have TWO HIGHISONs to show for it. The other two came out STAHL. I have no idea why.
Any other reports of things not coming out as they "should"?
Actually there have been reports of breeding combos which apparently produce unpredictable results. A few of the spreadsheets linked from this thread maintain multiple results for specific combos probably trying to account for this.
I suspect what we may find is that there are breeding combos which have like a 50% chance of yielding Tribble type A or 50% chance of yielding Tribble type B instead of being 100% predictable. A sort of "controlled randomness" if you will.
Of course this phenomena may just be the result of bugs. Maybe no result should ever be unpredictable. I suppose the best we can do is keep track of all this the best we can and see if a pattern develops. *shrugs*