do you think hes using synthol in those fucking quads?
the way the muscle contracts in the quads and hamstrings wouldnt make synthol a good option but like everything else, im sure some people would use it in those muscle goups. you usually look to inject synthol into muscles that need a rounder shape (bis/tris/shoulders). his bis look so ridiculous when an entire area doesnt move or contract during curls. like cutlers calves and bis in his videos.