4. It looks like I'll complete 75 days before Dec, 08. Is it better to complete it by Dec, 08 or is it correct that I should delay it to Jan, 09 to ensure I remain Platinum in 2009 as well.
If you get your 75 days in this year, you will be a Plat for the rest of this year and all of next year (2009). If you wait and get that 75th night in Jan '09 through the rolling 12-month calendar, then you will be Plat for the rest of 2009 AND all of 2010 as well.
So if you have the option, you might want to wait to reach the Plat milestone.