oh there are seams. trust me. they are there. not sure if i haev pics of a step by step process, but bassically its a rectngle with "long triangles" cut out of the top side. i glued the middle 2 and outter singles together at the top, and glued everythign else in place afterwards.
mostly i didint have any templates, and eyeballed it all.
if you look back a ways there is one shoulder pad i built first, that the general concesus was it was far too small. i still have it, and am thinking about painting it up as something else.