Wow, never had this problem because I don’t evolve before having another one.
But now, what do you all want to do?
Do we use the data which shows the program, or do we use what we as users count individually?
Really, for me it doesn’t matter if the data is correct or not. I believe in the spirit of all of us. But if you are near to 600 unique Hundos, than you can imagine that I have no energy to count them manually.
fwiw, I stopped looking specifically for 0 IV at least a year ago, when I started checking specific IV only for 3* and usually transfer anything 0* or 1*. I suspect I’ve thrown away a few nundos since then (but saved several hours of closer-examination time)
Since you mentioned it, then I want to say that I had caught just over 10,000 Pokemon and had got 20 Perfect species, though only 14 them are in my storage.
It’s all relative… I love the Hundos, and play searching them. So in my previous account I had more than 600, and in the actual account I have more than 200 and rising. It’s just a playing style.