Actually, it would be good if the two can run in parallel but have different missions, although there is an issue of membership cost. ADI would be best doing things like running the forum, holding the convention, promoting courses, etc. The ACDA should be focussed on legal and economic issues for anyone operating under a craft distiller's license in the US. And acting as an umbrella organization for all of the state associations or guilds. The ACDA is a 501©6 corp that can not economically benefit its directors, as it should be. It is a representative organization. The ADI strictly speaking is not. It is owned by someone, and it could generate revenue. However, the current ACDA goals also talk about duplicating some of the ADI activities, including running tastings, etc. I actually don't think it is helpful for a representative organization to run activities that have potential conflict of interest issues with its membership. Or better if perhaps it can do some of these things WITH the ADI. At least that is how it seems to me, but I have no knowledge of the back room issues that might be in play.
RIght now, we have chosen to be a member of both.