Update: After a pleading email to the certifier, he arrived on the doorstep tonight.

The other stuff needed for LVVTA has now been OKayed but he is still not happy about the front cage, even though it is now boxed in and does not intrude into the passenger compartment. However, he now needs to seek further authority from above, to ignore its existence. Equally, as a scrutineeer, until that has been agreed or sorted, he can't sign off for the authority card for harness belts and FIA seats.

If he cannot get that cage ignore authority, then he has pointed out where the front cage can be removed, meaning all of the cage above the dash bar and forward of the main hoop, which seems to be on the cards at the moment.