[B.A.T.M.A.N.] Change metric and priorize links with the best Bandwidth

Hi all

I'm asking myself if should be possible change the actual metric(TQ) in batman-adv or if there is a tool to configurte it.

We are deploying a rural mesh network where the nodes generally will be static in the same place, but maybe the links beetwen the nodes will have a unnestable bandwidth.

So we are looking for what protocol (with any plugin) is more efficient for our network.

Batman-adv have TQ like metric, but we would like that the nodes route the traffic priorizing the links with best bandwith available instead the links with best QoS. That is because finally, all the links tend to have ETX=1 at the expense of reduce de bandwidth(reducing the modulation and codification scheme in order to reduce looses), so the nodes route always for the shortest path...

Is there any solution for this?Do you recommend us change to another mesh protocol(OLSR+plugin) or another "static" protocol(ej: OSPF)? It is possible configurate batman-adv to get the fastest route instead the safer? Or maybe I am not understanding something...Am I proposing a fool thing?

Thanks you

Regards