If you have prints, don't the specs include a (CYA)pre bid site visit, that covers the architects /engineers, while transferring all responsibility to the bidder. They do in my parts. This always makes me wonder if the total responsibility is mine why are they getting paid in the first place. Oh yea; now I remember, its so I can spend my time and money to bid the job according to their rules, and then wait for them to disreguard their bidding process and start the reverse auction for the contract.