If you are trying to delay all the way to Jan 1st for the potential tax credit I don't think there is any way you could pull that off. Tesla is not allowing multiple holds on orders. They seem to allow one hold for about a month but after that will email you and threaten to cancel your order if you don't take delivery. You can reject the VIN but most get a new VIN within a few weeks. Let us know what your SA says about this if you try to hold...will be interested to know if there is leniency to hold all the way to Jan. From everything I've read, I seriously doubt it.