I'm just cleaning up (deburring) some bulkhead parts to get ready to assemble my last few fuselage bulkheads. I'm amazed how flimsy some of these are. My 708L/R pieces both have a twist in them. i suspect this is from being squashed in the packing materials, and am about to clamp them flat to a table to help remove teh twist.... but i wanted to double check... these bulkhead peices aren't *supposed* to have a weird twist in them, are they??