from what i can understand from the complex and safety issues regarding the seavixen and vulcan is that it as back up systems in place in the case of a failure ram air turbines for powering the systems comes to my mind ,things the lighting does not have . but as been said if and when the vulcan flys and does so with no problems then this could open the caa’s eyes open a bit and may look again if certain criteria are met .i hold great doubt the caa would ever grant one a permit but would love to be proved wrong and see a vulcan flanked by a single or pair of lightings .
would that be a crowd puller or what