I haven't read all the posts on this topic but to my mind what is available to race these days does not constitute enough variation to justify 2 weeks of practice/racing.

Much better to have 600,1000,sidecars and get the whole thing over and done with in a week.

Whoops does that sound a little bit like the NW200,no chairs admittedly but what a successful show they put on.

Doing that might just shut up the whingers from the finance/comeover brigade as well.