You could be putting too fine a point on the question. If the e-SIGN demonstrable consent occurred before the consumer read the disclosure, there is a good argument that the electronic version was made "legal," in spite of its having been sent the day before.
Personally, I think that if you are at the deadline for sending the disclosure, I think you're smarter to send it in written form, in addition to the e-disclosure, so that there is no doubt that the disclosure was timely sent in proper form. Betting that a consumer is going to do something on a particular day to legitimize an e-disclosure that's already en route is just begging for trouble, IMHO.
_________________________
John S. Burnett
BankersOnline.com
Fighting for Compliance since 1976
Bankers' Threads User #8