The one hazard with NASA classing (and I hold a NASA comp. license, along with SCCA etc.) is that their classes seem to change on a whim. My old 'PS' VW was competitive...but then 'PS' suddenly went away. They're sorta the polar opposite of SCCA classing - i.e. glacial pace of changes. [/b]
But that shouldn't matter. I don't think the rules say it needs to be an 'active' class. As long as you provide docs that say it fit, you should be fine.