It was a bit tight in the front seats of a Vulcan to wear a bonedome, so some old fossils insisted on a G-helmet and Mk 1 bondeome and would take the bonedome off in the cruise. But the Mk 3 was OK (this was 1977-80).
After leaving the Vulcan, I turned up to do a Hawk refesher at Valley with my 'Giant Voice 79' union flag painted bonedome (approved and painted by the Waddo squippers) - boy did I get the widdle taken! Someone finally decided that it reflected too much in the canopy
, so it was soon re-painted in that horrid NATO green.
Most of the team downstairs wore new style bonedomes, but the odd one or two still wore G-helmets.