The UK sumbitted an ALTMOC which comprised of the maximum of 3 training sessions with the ame instructor, so you can either follow the Regulation or you can follow the ALTMOC which has effectively been superceeded by the change in regulation. FCL.945 requires that to use the privilege the instructor must have flown with the candidate. It did not take into account the relaxation of the hour to more than one flight so it is assumed that to meet the spirit of 945 the instructor would have had to complete the 1 hours training rather than to have initiated it. To sign without flying with the candidate is contrary to FCL.945.