Clubs who wish to host, put their bids into the corresponding regions and at their regions AGM a vote is cast. (If more than one club submits to host, the region votes in an order of preference)
Then every region gets to have at least one venue in their geo location.
In the event all seven regions submit a host club, then a vote is made at the Section AGM. In the event 5 or less regions submit, then there are spare slots. These too are voted on at the Section AGM from all the regions that submitted more than one host venue and in order of their "preference". (So all second choice venues would battle it out etc etc)
Could make the submission quite exciting too. If the South East were tactical and put TORCH in as their number 1 choice and a spare slot was availble, EPR could be 2nd choice and (based only on what I have read and no personal experience) much more likely to beat the second place submissions from the other regions (if they didn't submit tactically
).
This method could also encourage investment in some regions in a bid to host. Not to mention raise the profile of 1:10 RC Off Road.
Obviously, all submissions would have to meet the "Host Criteria"