Tweak heuristics for legacy peers.
Tweak heuristics for legacy peers.

boutier/babeld,jech/babeld,tcatm/babeld,Gwendocg/babeldToS,wlanslovenija/babeld,dtaht/babeld-shortrtt-metrics,wlanslovenija/babeld,Gwendocg/babeldToS,jech/babeld,Drooids/babeld,sudomesh/babeld,woniullb/babeld