Manny, torque them to spec and call it a day.

I had your same concerns back in the day and under-torqued those bottom bolts so that the arm would swing more freely, but the nut ended up loosening and fell off, followed by the bolt backing out... Not good. At least I was at an autoslalom when it happened so I avoided a disaster.

Moral to the story, torque them to spec (even if the control arm seems to bind).