dont lecture me son. since i was old enough to carry a hammer i was pouring concrete. yes ive done the work they do and still do it more then they do half the time cuz they dont show up. annnnnnd when they start whining saying how heavy the pannels are i lug them cuz we dont need workers comp B/S. in fact i carry two at a time cuz time is money and i dont have time for B/s. thats why i am where i am cuz i did it fo a long time and im sure a lot longer to come