Major League Baseball now allows the use of a PitchCom system, in which pitchers and catchers are able to communicate signs to one another without putting manual signs down. The new system gained another user on Wednesday as Mets pitcher Max Scherzer gave it a try during a start against the Yankees.

Scherzer flourished with the new device at his disposal, tossing six shutout innings in a win over the Yankees. But don’t count Scherzer as a PitchCom endorser just yet.

“Does [PitchCom] help? Yes. But I also think it should be illegal,” Scherzer said postgame, per the New York Post. “I don’t think it should be in the game.”

Scherzer added he believes the PitchCom system gave him an unfair advantage Wednesday, noting he no longer has to hide signs from opposing hitters and baserunners.