I know the converter and TFE are current having compatibility issues, however my MP mega campaign is approaching the end of I:R, and I was curious. What end date for I:R and conversion to CK:3 date is recommended by people here? I was thinking of using 361 AD, but I have seen some suggest you do so after 475 AD.
I guess the primary factor is, when do the Huns/Atilla the Hun spawn in TFE converted I:R saves? Because presumably you would want to convert as late as possible from I:R, but just early enough to not break the spawning of Atilla the Hun.