SacreBleu,
From numerous postings from you, I totally hear you about architects' demands on project dead lines and last minute changes.
Typically, I demand that all necessary information (affecting the structure) be provided to us by the architect 2 weeks prior to THEIR dead line. In addition, any changes that affect structural work after that point shall be provided in writing (alternately, clouded CAD version with a written narrative). I make an agreement with the architect that making these subsequent changes are not guaranteed, depending on the structural design impact.
What about last minute mechanical changes? After working so diligently framing out all the units, latest background indicates units shifted from your equipment support framing. I'm sure you've encountered this problem.
It is a good idea to develop a relationship with the architects that you work with to, in a way, train them to provide you with what you need in advance. It is not an easy task... It is an on-going process.
Regarding your 3 day dead line rush, I just want to say "You can't finish a 1000 hour job in 1 hour with 1000 engineers".