The below link is for anyone with time to spare for such a diversion :-)
http://battlefieldswarriors.blogspot.co.uk/2015/02/remembering-old-wargame.html
Great post Norm. Thanks

I remember playing the Leicester rules (or at least our interpretation of them).

Although this is the later version.
Picked them up with an order of the tanks and vehicles from Bill Brewers shop in '69 or '70. Hand written letter and postal order from an advert in Military Modelling magazine.
I still have and use a couple of those tanks now. 2 Wespes: Cast in real lead, sewing pins for barrels, brass tube indentations for wheels and the crew compartment cast solid.
Dreadful things, but under a coat of paint and a plentiful mush of glue and flock they never fail to give good service alongside their modern compatriots.
IIRC we stopped using the Leicester rules when TTG's "Firefly" came out, they were even more mind numbingly complex but at the time were absolutely the best rules ever.
I am sure that in gaming same as everything else "what goes around comes around". More complex simulation style games will be back, even if they will have to be packaged like the mass market glossies and use technology to replace the manual calculations and detail analysis of before.
As an example, the Kriegsmarine "UBoot" game on Kickstarter may be the way things are going.
https://www.kickstarter.com/projects/phalanxgames/uboot-the-board-game