Originally Posted by
pWei
If you do the modification twice, wouldn't you run the risk of the original room type being sold out or the rate not being available when you want to switch it back? Still, useful trick for inside the cancellation window if ok with risk.
Otherwise, I'd go with book and cancel.
It
is a risk, but very low risk because unlike airlines, Hyatt is pretty good about releasing the rooms back into inventory very shortly after the reservation is canceled.