I don't think if this works.
"c:GetReasonCard():GetMaterial():FilterCount(Card.IsType,nil,TYPE_TUNER)>=2"
because it doesn't have a Reason Card yet, and GetMaterial seems like only Check The Material of that monster if it was already Synchro Summoned, maybe I wrong.
I can't test it yet, but when I get a more time, I will test.