Originally Posted by 31wins

Hi all you Southwest guys/gals,
I was in the jumpseat the other day (Thank you!) and was startled by the FO's control check. I thought he was trying to fling the ailerons right off the wings. Are you taught to do the control check as fast as possible? Are your 737-700 built to withstand this kind control check? They must be, but it seemed really odd.