I have some green tips on the way, and some spare lvl3 steel I use for my jogs.
I'd be happy to test it out myself one day, although I saw a faaaair number of videos on youtube of greentip NOT going through lvl3 steel....lol
Yes your right I have never seen green tip ever penetrate anything that's is actually rated level 3. The only reason the green tip has even a chance is because these plates are 20+ years old.