I think I disagree with almost all of that Paul.
The 1995-6 was the NipponDenso ECU driving high impedance injectors in six groups of two, so called semi-sequentially. Totally different from a Lucas ECU driving low impedance injectors in four groups of three. See pages 68 and 69 of http://jagrepair.com/images/AutoRepairPhotos/jagxj1996.pdf
The tech spec has also been discussed here before:-
[v12-engine] 6.0L Denso injectors - #28 by ronbros and other technical manuals.
The Lucas ECUs controlled injectors from maps stored inside the ECU and only deviated from that when the narrowband exhaust sensors wanted to maintain 14.7:1 AFR, i.e. for cruise only, not across the board, as narrowband sensors don’t tell you anything useful outside a small range either side of 14.7:1 AFR.
The Lucas ECUs are very different from each other, but are nearly pin compatible from loom to loom, which superficially made them appear similar.
kind regards
Marek