questions regarding spreadsheet

I am one of many looking at buying vip, but I have 2 questions to ask first

1) how often is the spread sheet updated i.e daily, weekly...

2) when the spread sheet first comes out, how far off the listed prices has the actual price I should buy and sell at deviated

3) could you list the title and/or a description of some of the more popular guides that will become available

thanks guys

i believe that is 3 questions :p

^