My dad is complaining about back pain. Could his swing below be contributing? How? His predominate ballflight is weak slices that he starts way to the left.
<iframe width="425" height="349" src="http://www.youtube.com/embed/Rx9v3BjAcs0" frameborder="0" allowfullscreen></iframe>
<iframe width="425" height="349" src="http://www.youtube.com/embed/M_Bk_RNwki0" frameborder="0" allowfullscreen></iframe>
<iframe width="425" height="349" src="http://www.youtube.com/embed/Rx9v3BjAcs0" frameborder="0" allowfullscreen></iframe>
<iframe width="425" height="349" src="http://www.youtube.com/embed/M_Bk_RNwki0" frameborder="0" allowfullscreen></iframe>