I was teaching someone to cast yesterday. As always I talked about his other experience in spin fishing and I also asked him to demonstrate in slow motion the trowing action for a ball (which is not much different than spin fishing movement). There was wrist bend and the arm extended far in front etc. I then pointed out that these habits are NOT flycasting. The movements in fly casting are not hard, but in most cases the new caster has many years of arm action that must be unlearned. The hardest thing is not teaching casting, it's UNteaching all the other thowing history.