Hi,
 I have been suffering off heading openings lately on my Stiletto 150.  Sometimes pretty violent 180 drgree spins.  It is worrying me to the point where I have stopped jumping with large groups in fear of a collision.  
 I am quite certain that I have picked up some bad habits while packing which is causing this, as when I have packers pack for me it seems to be ok.  
 What exactly causes off heading openings, and where should I take most care during the pack jobs?  I know base jumpers have some tricks to keep everything straight, do you wanna share!!
 Nick.