Blue, you're wrong man. There is a difference between street/comp sways, which is why they make different pairs instead of one. You cannot ride around in a daily driver on comp sways. They're too stiff and they destroy the bump-stops on your car.
Now that's funny! Anyone who knows anything about suspensions will immediately take my side after reading that last sentence.
Sways have absolutely no connection to the bump stops. At best, stiffer sways would help preserve them, since they'd keep the car from bottoming out on a turn, but that's in an extreme case with rather poor suspension components. If you checked the info on Hotchkis' site, you'd know that the front bar from the Comps and Streets are EXACTLY the same. The only difference is the rear bar, which is stiffer and helps keep the car neutral during turns, and gives you some oversteer at the limit (also the same bar they sell individiually as an "Autocross Bar").
The only reason Hotchkis recommends them "for competition use only" is because they don't want any trouble from someone oversteering themself off the road, when they were trying to compensate for the usual understeer of the stock suspension (I spoke to someone at Hotchkis about this). Think of it in the same way that Toyota changed the shift gates to prevent people from misshifting (though they continue to do so
), but Hotchkis didn't dumb down their bars like Toyota did to the tranny. Basically, the Comp bars are for more experienced drivers who know how suspensions work, and are smart enough not to take the car to the limit the first time out after the install. Besides that and the improved performance, there is no difference in wear on anything or ride comfort between the Comps and Streets.