Dunno - I think with a trade the neutrals on 6lm are quite doable. The main thing is to reroll good roads for yourself. I'll try to implement this strategy once again with Roger. With Falcon it worked twice out of three times for the blue player.
PS. Castle usually doesn't work, but the neutrals are quite realistic.
I was breaking everything here today as Conflux on week 1 against the neutrals, and as Citadel it was just ezpz. :D