At least FXCM balanced the negative accounts without demanding money from their private customers. In their confirmation mail they wrote that this was a one time event, this does not sound like "we kept our promise and we'll keep it in future". Before they balanced the negative accounts they cleared it with those that were positive, although I have a written consent from them that they won't (my audit because of this is still in progress). Take care of this fact or better use only one account at FXCM. You can use Zorro at each broker that supports MT4 - I don't know either if there are restrictions compared to direct access via the API but I will find it out. Actually I can hardly imagine to trade on with FXCM.