first you throw a trapeeze, then with your non throw hand thumb grab the string leading to your throw hand and put it in the loop. now with your throw hand pointer finger take the part of the loop thats away from you and put it under the yo-yo.and thats my trick, hope you like it ;D if you go into GT your doing wrong
Does that go into GT? Nice trick! 
can you post a vid of you doing it a few times? I can’t understand it when you say it.
I think its already been invented,like a black GT,or fake GT.I think that is what you are talking about,but a video would help.
i dont get it. a video would help. ???