1997 Caravan ES (SWB) with 105,000 miles.
The other day I noticed a creaking noise when turning right at slow
speeds (like turning into the driveway). The mechanic told me
it was the right strut and strut bearing. Replaced the struts and the
bad bearing.  Now it pulls to the right. I took it back and he told me
the alignment slipped, he reset it, and gave  me the printout from the
alignment machine, showing all settings in the green area.
He said if it still pulls, to come back and he'd replace the right
strut, because it may be sticking?
Well, there is still a "slight" pull to the right, almost like it's
not compensated for road crown. If I drive in the center turn lanes,
where there is no crown, it tracks true. As soon as I move into the
driving lane where there is a slight road crown, it again pulls to the
right. Not badly, but enough to be noticed.
There was no pull before the strut replacement.
I am concerned that if I ignore the slight pull, it will eat up the
inside of the right tire. Should I be worried, or is this just a
normal situation that I didn't have before?  
Your comments and opinions are appreciated.
Thanks in advance.