Not my idea, however, if you are extending a weeks reservation (as I am) this year, and you want to use the puck trick, you want to reserve it now in advance of the 60 day discount cutoff. If you do that now, when you cancel it later since you will reserve it within 60 days for the 30% discount, you will have to use this years points within 60 days (holding account), this year. Not optimal.
If you borrow the points to extend the reservation, when you cancel it within 60 days, the points go into 2019 holding points and you have all year to use them. Even better, if you cancel those borrowed points and have the rep use them for the within 60 days discount, then, only 30% of those go into holding status for 2019. The rest are used to book the within 60 day discount, which is what they are for anyway.