I once had a scenario where a number of aircraft were converging on a point to all join the same route. The last to reach the point was penalised somewhere around 6000ft as they were all hitting oceanic airspace. The penalised aircraft protested loudly as they believed the had right of way as they were the first on the airway as the merge point continued as their current airway and none of the others did. There was no other option that could be solved with speed matching pairs. Two way route so Non Standard not available.
