What's interesting, as I am sure you know, is that in Romania the Szekelys are considered "different" than the rest of the Hungarians. Indeed, many Hungarians from Hungary come to Romania to visit the Szekelys and see where they live, esp because they live in the "old ways" which haven't changed much over the centuries.
Romania is certainly an interesting country and the more time I live here, the more I learn about it and all the various peoples who live here, including the Lipoveni, a sort of Russian cult who hail from near the Black Sea coast.
Pax Night and day you can find me Flogging the Simian
They (or more correctly: their foremen) were certainly separate at the time of Transsylvania's relative autonomy - when from 1437, in the "unio trium nationum", Hungarian noblemen, Székely foremen and Saxon patricians were granted equal rights (and peasants, including all vlachs/Romanians, denied all rights - this agreement came just after the defeat of a peasant revolt). As for earlier times, the continuity from the Kabars is only tentative (I'm again relying on my brother here). *Lunatic*, n. One whose delusions are out of fashion.