And since I finally figured out how to get this to work in (the nowhere near as good as MS Excel, but it's free) Google 'Sheets'...
Regarding why adding damping to a basic frequency analysis actually helps with explaining what is happening to the suspension, and bolstering the case for a 'flat ride', consider the following two plots (Blue = Front, Red = Rear) and try to determine which one a road disturbance would tend to upset the chassis less:
Attachment:
Flat Ride Undamped 1.png
Attachment:
Flat Ride Undamped 2.png
On the one hand, the rear catches up to the front faster in the first case. On the other hand, the rear
eventually becomes more closely aligned for a brief period in the second case.
One of the guys with a stalker I've goiten to know I talked to him in the last couple days and he has just pirated his springs. He said the car has actually smoothed out and lost a lot of the harshness. I thought I rode fine, but that's a limited experience too. To me it's weird that it would happen but I can kinda see it here. I think that's what you were doing here. Stiffer spring makes the dampening happen faster. Good point on bump stops. I have to add an 1" if not mistaken
....Now consider the following two plots (Blue = Front, Red = Rear) and try to determine which one a road disturbance would tend to upset the chassis less:
Attachment:
Flat Ride Damped 1.png
Attachment:
Flat Ride Damped 2.png
This one kind of explains itself, not leaving you wondering whether the rear is catching up to the front too quickly or not quickly enough.