Wellphyt, let me know at what point in Hodge's video that he warns about the throwing hand moving directionally towards the back of the head.
Do take note of the throwing angle here ....
07_Misc: about halfway through he talks about flailing the arm behind the torso or making a big long swooping circle with the throwing arm behind the torso. As he's narrating he gives an example of the throwing hand going behind the head as something not to do.
IMO this is not the same behind the head motion that Tewks is teaching.