If there are local on road tracks I think clubs need to work together to come to an agreement of FDR/17.5 fixed motor and tyres if the heart of it is to keep close racing so there's no "motor wars"

Once that's established racers can switch between clubs if they want to race. This has allowed some racers from another club to come to ours and we can go them. When competition time comes up, follow the same agreed rules.