As an addition to this regarding lack of numbers at Regional events, I am sure PW has attendance figures for all the regions. I know that some regions only get maybe 12 people turning up for their regional events which makes a mockery of the F grades.
If you reduced the number of regions putting regionals on, lets say only 3 regions in the country, North, Midlands and South, you would get well attended race weekends which may effectively become National B events and call our Nationals, National A events.
This is what happens in British Club Rallying, you have National A events where drivers who are good enough, compete and National B events where good clubmen compete.
Also if you reduced the numbers of Regions, you would hope that the best run clubs would get to run the Regionals, like Southport, York and Bury for example in the North.
This may lead to drivers who qualify as F1, 2 and 3 to run National A and F3, 4 and 5 to run National B.
On the downside it would mean more travel for a lot of people but if the regionals were attracting 70 - 80 - 100 people they may see it as a worthwhile test of their skill before they move on to National A events.
Just an idea, needs more work, probably bollox