[400TT]

One drama I can see with the short notice for the QLDers is that they have a full calendar year of racing, not much downtime to make modifications.

Any serious changes normally occur over the xmas break when they have a long enough break from racing.

So even though it seems like they have just under 4 months to make the modifications, by the time you look at their race schedule between now and the nationals, there really isn't a lot of time to make these changes.

And the only QLDers that are really affected by these changes are the ones that race all the time.

Another thing I was thinking about was the GT40s. I'm assuming any GT40s faster than 11.99 would need a roll cage. Now that's no simple feat to retro-fit. And by design I would think it would be virtually impossible to get the bar 50mm above the drivers helmet.