I'd be having the ears open on what Kap'Inn speaks. If I may interject a theory where I don't think, nor did the factories think of something this simple, this bridge triangulated like one solid spring rate in a linearated pogo-sticking my front and rear ends.
Yes, a straight wind in oil, or outside on my springer, once I lock down axle(s), I am one up and down unit. So my straight wind is compressed in a straight linear move. No give say on the way up, on the way down, or an upside down shock is how you look at things sprung, unsprung. Either way, what would you say if setting up a spring rate on an average basis?
It says for argument sake, we have a 10 pound spring in one fork, or one side of the springer's spring at this rate. We now install an 8 pound spring rate on the other side, add both together. We now have a 9 pound front end is the 'average.' Did you catch that?
Squats the difference if it's a front or rear set of shocks, parts is parts. Shocks are shocks. That's my story. Learned my lesson last racing season is now your turn with a little pepper, a smear of mayo and pap... We have a sandwich you sit your ass down and checkit out now!