Absolutely no way would I support 5 man teams. Has to be 7 man teams with the points limit set between championship and premiership. A second league for the lesser championship teams who can expand the national development league.
The problem is finding extra riders. Currently there are not enough to go between the two league without doubling up.Using young NL British riders will help. Sure, some will be out of their depth while others will thrive. Polish Extra league has u21 6 and 7 regardless of ability who stay there even if they are world champion. We should take the same mentality.
Seven teams is no good. Not enough variety or meetings.