There is more reported evidence of 5th-slot NV rare being Legendary capable than there is for any of this Signet stuff. We're taking people at their words for extremely incomplete data (what exact mob, for example, dropped the ring each person found, and we don't even know how loot tables work and what order if any drops are assigned) on signet drops. wtf? As people from the other thread that stayed on and came over here can tell you, I've done the legwork in finding the item, finding the run, and people who have done my run and even my extended run, can attest that they've gotten the ring successfully. Even Chaos's theory on Royal Audience, although he's never gotten the ring there himself, the ring has dropped for others. This was all based on concepts that were posted on the first thread.
I've said many times it's based on the base item and once that base item is rolled legendary, it's "upgraded" to the leorics signet. If the ring is a higher lvl ring like those found in VOA, that one upgrades to Manald's and that was proven TRUE time and time again. Technically, the signet data is legit, there's nothing else to know about them.
Here, I wasted plenty of time searching all over then found the perfect example
Well you know you can't really blame me if you keep talking about this video and you don't produce one it's like wtf ya know? Nobody would take you seriously if you said you had one and you didn't. But now you found the video, so nice job, thx for that.
Like I said, even without the video I have now provided, there is more evidence in support of 5-NV rare being able to roll Legendary than there is for just about anything we know about Signet drops outside of that they can drop in audience, sewers, and in oasis.
The only evidence we have of such information is incomplete testimonials (missing critical information, chiefly what mob
The only hard evidence we have is a video of a pre-1.0.4 signet dropping from a snake in the Wretched Pit (adria), which according to d3db are actually level 19, not level 17. So, there's that, which kind of throws a wrench in this whole "level 17 mobs" bit.
As for "I've said many times it's based on the base item and once that base item is rolled legendary, it's "upgraded" to the leorics signet.", you have no evidence to support this, and I highly doubt you could actually find any evidence. The only thing that could show this one way or another is a statement from Blizzard accompanied by some sort of loot table / beastiary drop tables or other such information.
Moving on to "If the ring is a higher lvl ring like those found in VOA, that one upgrades to Manald's and that was proven TRUE time and time again.", as with the above, you cannot prove this true. You are doing one of two things here: Either as above you are theorizing on loot drop mechanics that you cannot prove, or you are simply making an argument that these slightly higher level mobs are incapable of dropping this slightly lower level Legendary, which you also could not diffinitively prove. You could only provide mountains of data to support that theory, and what we have so far are not mountains of data but rather an extremely small sample size of incomplete data. You would be on track to at least reliably discount VoA as a drop location if you had a sample size of a least a hundred that included both location *and* monster type and absolutely none of the finds came from there or from any monsters of the same monster class or level. Which you don't.