As long as you aren't borrowing more than 1 use year head of the "use year that the reservation is in" , the answer is yes.
So now the example is:
My use year is August.
2000 use year goes from Aug 1, 2000 - July 31, 2001
2001 use year goes form Aug 1, 2001 - July 31, 2002
2002 use year goes form Aug 1, 2002 - July 31, 2003
2003 use year goes form Aug 1, 2003 - July 31, 2004
etc.
It's May 29, 2001 and I want to make a reservation for April 29, 2002. April 2002 falls within my 2001 use year
I have no points left for my 2000 use year and all of my 2001 use year points are either commited or used.
So the points that I am due to receive in August 2002 are the only points available to me for this ressie. I can borrow those 2002 use year points into my 2001 use year to make the April, 2002 ressie. (Of course, eventually, I am going to have to either skip a year, purchase more points or pay cash! LOL).
I can NOT borrow any of the points that I have coming in August 2003 for the April 2002 resssie, though, as that would be borrowing more than 1 use year ahead of the use year the ressie is in. So I hope the ressie doesn't cost more than one year's worth of points. (Well, I guess I could try to rent some. LOL!)
Good Luck!