I started reading this thread because as I was thinking about my upcoming reservation, I realized I was confused about something and I was trying to think it through, but honestly am not sure. So I figured I would put it out here.
I have read the thread about UY several times and it makes sense to me, sometimes though I have a problem taking it from words to actual use. As well as the ins and outs of banking and borrowing sometimes cause me to pause and think.
Here is my question and I hope that I am clear. I am going to make my first reservation in a couple of days at my home resort of BLT for next June. I have banked my 100 2009 points (August UY, so good until August 2011). I will have my 100 2010 points available (good until August 2011 as well). I need exactly 200 points for the reservation so I am all set with that. However is a good idea to bank my 2010 points first? Not even sure if that is possible since August has come yet. I know the 2009 points have to be used by August of next year no matter what or they are gone. However the 2010 points would be good until August of 2012 if they were banked. If I have to cancel after my March banking deadline then the 2010 points must be also used by 2011. So in my head if I banked the 2010 points they will be good until 2012 and although a cancellation would mean I lose the 2009 points I would at least still have the 2010 points through August 2012. I know banking and borrowing are final transactions. I hope that made sense.

I know I have asked similar questions before and I apologize, I am trying to figure it all out and seem to keep tripping myself up.
Thanks so much you.