SAG-AFTRA leaders are beginning the process of selling their new studio contract to the membership, amid lingering concerns about artificial intelligence and the merger of two pension funds. The deal, unveiled on Monday, allows studios to use synthetic performers only if they bring “significant additional value” to a project. It also requires studios to notify and bargain with the union if they license performances for AI training. But for some members, that language is too flexible and far from reassuring. Popular on Variety “Who determines that? A studio lawyer — that’s who determines ‘significant additional value,'” said Erik Passoja, a former co-chair of the union’s L.A. New Technology Committee. “And if a studio licenses your performance to a third party, they have to give written notice and meet to discuss it. No consent. No compensation floor. The union gets a meeting.…