The thing is with using long the swings you need to understand is when you've gone too far because there was a tipping point between accuracy distance and strike. Now a lot of the longest drivers out there so you say the world long drive champs So look at Joe Miller which actually won this year he is an absolute beast in his back swing huge.
Longer Swing Golf Drills - How To Understand You've Gone Too Far (Video) - by Peter Finch