Mule,
Stubborness is not going to win any bids. I read the comment-
Maybe you've never been around an etimatimg department that already has "assemblies:" by the dozen, and can furnish a bid in less than 5 minutes, for 90% of the work we do. No one has the time to itemize every house service change, everytime.
It costs less for a customer to pay for little "extra items" that are padded into the bid, than to pay you to burn the time up justifying your every move.
Quit being so defensive, and move to an evaluating position. Try some of the better stuff that gets put out in the threads. First part of being a professional, is knowing what all the professionals know. Second is knowing what, and when to apply it. There are $100's of dollars worth of great ideas bounced around in here, use them!
Really, this forum is designed to help, not hobble all those in th industry.
Apparently my opinions have no value on this forum, and you've made up my mind.....thanks