Still nothing on the GPI Mk7.
Sigh.
I was explaining a spherical resolver to someone, and the look I got said I could have been explaining witchcraft for all the sense it was making to them. I was going to mention the rotating magnetic drum memory of the SNT but got the impression they wouldn't believe such a thing could exist..
(best Welsh accent)
"... but you tell that to kids of today, and they won't believe you!"