Can you check my banking + borrowing math for me?

[Disneymooner07]

I just want to make sure I'm understanding this banking and borrowing business correctly before I buy points and find out we can't actually take the trips I think we can! Our goal is to take a trip every other year alternating between a GV for one trip and then whatever accommodations we can get with 200 points for the next trip. Does the below math sound correct?

Say I buy a 200 point resale contract with a Dec UY and all its 2012 points, I can bank those by July 2013 and be able to use them for a trip anytime until December 2014. In Dec 2013, I'll receive another 200 points and then at some time between December 2013 and December 2014, I can borrow the points from December 2014 to take a trip before December 2014. Is that correct? So I could have 600 points to book a Grand Villa for a trip at some point before December 2014? Are there restrictions on when/how to borrow? How early can I borrow my Dec 2014 points? I want to know what my 11-month window will be for our home resort - come to think of it, if there are restrictions on borrowing, Dec UY may be a problem if we want to take advantage of the 11-month window for a GV in the summer, right?

And then, since I've already used my Dec 2014 points, I won't get points again until Dec 2015. But I can't use those points to book a trip until after I have actually received them in Dec 2015, so I wouldn't really be able to take a trip until after Dec 2015, right? So I'd realistically be looking at a mid 2016 time for the next trip? And then repeat: I'd bank Dec 2016 points with the Dec 2017 points and borrow Dec 2018 points for a Grand Villa trip sometime before Dec 2018, etc.

Am I crazy or does that sound correct? I haven't put the offer in yet, but if this all sounds about right, I think we're going to go for 200 BWV points!!!