hey guys i v been doing some metal work on my 37 chev pickup, i m making the top portion of the hood one piece and was welding it together today, went ver slowly welded about 1/2 inch at a time in two or three place then went to do something else while it cooled. I m almost done but am noticing i have caused some warpage neer the welds, I am wonder what i can do to correct the problem? The hood otherwis is turning out great, but wondering if i can shrink those low spots with heat and a cool wrag or am i stuck with using a little extra bondo. Appreciate your input. thanks