The main problem I can't get past with having non-trans woe on a separate day, is that it is basically a '2 for the price of 1' deal for any of the larger guilds. You can get eco from two different castles with only having to defend 1 at a time. (This is what Pistis has been trying to get across)
You could say its not like that, because you have to use different characters, but as long as a guild has the amount of people, I doubt that'll ever be a problem. Everyone has alts, or trans chars in the making, its a 5x exp server, why wouldn't you? Do we really want HeRo to have what is essentially double eco?