I agree with Treeve on the load and torsional twisting of the lower arm with one shock only per side. It will load the small bearings at the end of the arms more. The only upside I can see is that the cobra is a hell of a lot lighter than the jag. I will also add that the lower arms in my G Force cobra were
zinc plated when I bought the car. I had them replated again as corrosion had formed on the top of the arms due to the car sitting for a long period of time. When I picked them up the platter said he had to plate them a number of times due to blistering. Plating can cause hydrogen embrittlement. One sign of that is blistering of the surface. AAARRRRGGGG, I'm not going to take a risk. I know of one chromed arm failing in a Hot rod in WA. new arms being built as we speak.