There are seven teams, BV, Edinburgh, Glasgow, Berwick, Workington, Redcar, and Sheffield, that are "Northern" however there never appears to be too many from any of them at the BF, even Sheffield..
To be fair, not too many turn up from Sheffield for play offs..
Maybe moving it to somewhere like Glasgow one year, and Ipswich or Kings Lynn the next would get more interest? Given they have current tracks around them, and/or reasonably recently closed tracks around them...
Poole would deliver a decent crowd too I would think, as the likes of Lambert and Bewley will be, like if any Championship team had it, a novelty so would generate interest...
Whatever happens they need to do some marketing and, like with all the UK Speedway titles, make the competition actually worth winning, as currently, riders can just pull out such is their lack of desire to win it....
And that cannot be good optics for a National Championship if they want to engage a decent following...
As for being Central? Manchester is probably the most Central point from the Scottish teams to the South Coast ones...
It's more the lack of prestige in the BF title, and the level of riders on view nowadays, that keep people away for me, more than the venue location...