YOu can have the best mercury synastry aspects in the world but if someone cannot share his feeling or wants to keep his private life to himself (indicated by other placements) .. then what would we have?I had an exact merc-merc trine, asc-merc trine, sun-merc trine with someone... but he couldn't share and I've never been so frustrated by an intellectual interaction as ours. But I was in love with his voice and there was nothing I prefered to hear more than that.. I wanted to talk talk talk talk (haha mercury on the asc in virgo square the saturn/nept opposition = me)
A composite specialist hit the nail on the head once. Not only about the lack of shared feeling and him keeping his private life locked but also about the intellectual incompatibility; Mercury square Orcus (huh?).. and that was about IT regarding Mercury there. (ow yess a mercury square to the Node also but he didn't mention that).