The problem with this system is that Verant added a bunch of ALL/ALL items with high AC in Velious, which allowed Monks to hit the 289 item AC cap, then get the Monk/Iksar bonus on top of it, and finally get the superior monk defensive skills on top of that.
https://wiki.project1999.com/Magelo_Blue:Raev
35+20+10+20+25+7+14+15+8+17+17+60+15+12+10+20 = 305 AC
Verant did fix this for Planes of Power:
https://www.takproject.net/magelo/ch...hp?char=Gorrok
https://www.takproject.net/magelo/ch...har=Thucydides