Normas and Yellow Tops are the two best Decas out there, IMO. But like RoadHouse said, and I can concur, all the Normas I've ever had have been underfilled by about .2 - .3 of a cc.
Another point to consider is Normas and YTs are probably the most commonly faked gear there is, except of course for Primo. That being said, as long as you trust your source, fake gear will not even come into play.
I personally would rather spend the extra cash for human grade gear, but then again, that is only my personal preference.