Just submitted my SEP Revalidation electronically. I had to include a scanned version of the hard copy form with the examiners signature.
So, you still need the traditional form filled out, but you can save the postage stamp I guess.
I was under the impression there was no fee with a revalidation through experience but it cost 14 pounds for the submission.
Either way, I guess I am good for another 2 years…assuming that the Internets work on the CAA side.