Remember how trading changes the IV. I traded for a 15 IV Shiny Totodile and got a 91 IV Shiny Lucky Totodile (which, after a couple of evolves, is now a 93 IV Shiny Feraligatr).
I’m sure that sort of result only happens sometimes; but a similar series of moves transformed a 35 IV Shiny Chikorita into a 91 IV Shiny Lucky Meganum.
Finding a low-IV / high-CP specimen for trading helps (as IV changes when traded, but not CP).
Well, in this moment @celery is Number one…
And @vorgriff3, you are very right, the trading has given a lot of value to the low IV monsters. What doesn’t change is CP, but the IV can jump to the moon.
The cases I’d seen showed so much more dramatic a change in IV than CP that I guess I never bothered keeping track of the CP. Good to know the reality, so thanks for the corrective info, @Necrozmadabest.