Should I include the optional List of Suggested Reviewers or Reviewers Not to Include form in my application?
A list of suggested reviewers (along with their contact information) is optional but important and helpful, especially for multidisciplinary proposals. Consider including a list of eight or more eligible suggested reviewers. Be sure that none of them have conflicts of interest with your proposal (e.g., spouse or relative, collaborators and co-editors, thesis advisor, institutional conflicts). Think about including newer faculty members and experienced post-doctoral scholars who have a deep and current understanding of the topic; Program Directors probably know the “household names” in the field, but may not be aware of those individuals. And don’t put this task off to the end of proposal preparation when you may be pushing to meet the submission deadline. Think of suggesting reviewers as part of the process of preparing the best proposal you can. If you take advantage of this opportunity to help yourself you will also assist NSF Program Directors in their role of providing the highest quality merit review of your proposal.
...
Reviewers pay attention to the budget, so being specific is important; however, be realistic. For instance, it is likely reasonable to calculate and itemize airfare, hotel, and per diem for next-year travel and generalize similar travel planned for three years from now. Also, discipline matters: If you are proposing project costs that are unusual in a certain area (e.g., fieldwork in an Engineering proposal), be especially clear and specific.
References
NSF PAPPG 2020Proposal and Award Policies and Procedures Guide
NSF Grants Conference, Fall 2019
Where should I describe release time?
...