Ok, my first game of VIP... I played for a couple of hours and have mixed feelings. I love the events, they add so much flavor. Also the new trade seems interesting (although I'll have to play through to get a good picture). Im also absolutely delighted that the colonisation thing is out, 3 cheers.
But! Being a Hungarian I automatically loaded as Hungary (Austria) and was absolutely stunned that Sopron has a 75% german population. Even a reversed 25% would still be out of line, but as it is... well. Also Székesfehérvár having a 25% german population is also false. I do understand that sopron is close to Wien, but that does not mean that there was steady mix in the population. In fact unlike transylvania, and szlovakia where there were large mixes, the border between hungary and ausztria remained completely intact and the borderlines where quite straightforward. Although there was naturally a small german population (svábok), but they hardly were 75%, in fact I'd put them below a 10% margin. Székésfehérvár on the other hand had none. At least based on my history and hungarian knowledge, but will double check. I do understand Pest had a german population which is mainly the governmental sphere, so a german population (capitalist, officers or maybe even clerks) is a welcome addition.
If needed or the creators are interested I could try to give a detailed description of the former Hungarian territories and their ethnicities. But only if one of the mod developers actually feel it is a worthy addition or something that they are willing to change based on my documentation.