first of all, i am not trying to start anything or jump on anyone, but it all depends what you call a national title.
before DCI and even during DCIs first few years there were several national shows.
since you included Kilties and Royal Aires i assume because they won VFW titles then you should also include 27th Lancers because they won World Open in 71 and 79 and also won Dream in 71 and CYO in 77 and 81.(these were big time national shows)
the Bridgemen also won World Open in 73,77,78,80 and 81 and Dream in 77 and 78.
these were all considered national title shows along with VFW and the