Thank you for taking the time to create this spreadsheet.  It is a little depressing to look at, but gives me an idea of how things might play out.

If you have time, is there any chance you can add a field that will allow users to show what it will look like if mining starts n days from now.  I have not received my equipment yet, and I am trying to see what things might look like when I receive my miner in the coming weeks.  Thanks.