So, I peeked at your page about Czech kroj(e). It looks like you found the main one from a website that is pretty common to find. I have had the same problems tracking down what and where some of the national dress is applied to which region. I have mostly found the same things as you have but then have gain the information that Czech national dress prescribes to those standards as you listed but are further refined as you get closer to bigger cities and even further if a smaller village has an example. If that smaller village does not have one, then they default to the nearest bigger town or city. Correct me if I have misinterpreted something here, please.