Aren't we simply talking about the difference between a restricted regional, and a regional? Restricted would not provide 'championship' points, and allow the region-specific (non-GCR) classes as well? Get rid of 'National' weekends, and provide 'National' points at any non-restricted regional.

I don't care about the run-offs, and I don't really worry about cost creep. I'd love to have the flexibility of race dates that would result from allowing me to run during 'national', regional, or both events.