Boxing in LCAs

I have seen the LCA boxing kits, and I was wondering what results it would yield for mostly street driving. I see NO auto crossing in my future, but I wonder If I would notice a difference if I tended to drive just a bit aggressively around traffic circles. BTW, 69 Barracuda Fastback, 340, 4 speed, Hotchkiss Front swaybar.

The weld on plates help, but the weak point on the lower control arms is the cast iron portion that the lower ball joint fits into. It's riveted between the two halves.