I don't have those arms so I can't comment on them exactly but I do know pro comp does not stand behind their products like they claim. Over the years I've ran numerous parts from them and have had issues with just about everything. When you call them about an issue and needing to warranty something, I always get the same old "sorry about your issue. That's the first time this has failed but unfortunately we won't/don't cover that item." There was a time when their products were ok but every since they became affiliated with 4wheel parts, pro comp has really gone down the drain.
If all you intend on doing is just driving on smooth pavement, you will probably be fine. That is really what pro comp's stuff is for. I would recommend going with different control arms. Have you checked out the JBA's?