I chose not to for a couple of reasons:
1.) I want these OEM tires to die so I can get something decent
2.) the car is more eager and competent in changing direction with the very slight toe change that lowering it has afforded the car
3.) I still believe with a .75" front lower (which is what H&R claims) the front is probably within or very close to factory spec.
will I in the future? that remains to be seen, but probably not if my tires don't show typical toe wear characteristics.
that all being said, it is always a good idea to get your car aligned when altering any suspension pieces.