Ah now I get it. I never knew that’s what they called that multiple shift lever racing setup.
When you said "Lightning Rods", I though you were making a wise crack about their height in relation to the surrounding areas. IE. a lightning rod being the tallest point on a house.
They are actually brake and clutch levers from an old XJ. I converted to the manual and got the wrong bracket/peddles the first time out so I decided to put them to use.
I guess in retrospect they do work similar to what you describe. The far lever allows me to shift the 203. and the closer (to the driver) are the front and rear outputs on the 205. All levers forward = fast, all levers back = slow.
Crawl ratio is only about 140:1, being only 4:1 in the cases, 6.7 or so in the tranny and 5.13 in the diffs.