...previous-generation chips. Although the number of units impacted by this issue remains consistent with the company's initialestimates a year ago, the cost of remediation and repair of impacted systems has been higher than originally anticipated...
http://news.cnet.com/8301-13924_3-10303774-64.html
...makes it easier for them to forgive you later. Things will always take 30% longer and cost 30% more than your initialestimates. Pad your estimates. If you’re lucky and persuasive enough, you may get approval for what you originally...
http://www.pmhut.com/10-practical-strategies-for-project-managers