How sturdy/secure are the factory racks and cross bars? Will they support a couple of surfboards, specifically longboards? More importantly will they pull out of the roof? I imagine the boards put quite a strain on racks at highway speed. I would hate to lose my boards. Sorry if this a duplicate question. I searched the forum and did not see anything. I am new to T4Rs I just purchased a 2002 SR5. Down sizing from a full sized Dodge Pick-up with racks on the bed.