Servo saver seems to be okay although I will check. Servo is the Futaba digital, can't remember the numbers but its one of the common ones.

I will check the weight balance, bearings, springs and arms again to see if I can spot anything.

I have been runing my tweak springs (white) all the way up and have had the car pretty balanced. Yesterday when I was testing and had this problem, I could reverse the issue by screwing the right spring (looking from behind the car) all the way in and leaving the left one alone.
But from there, I could never work them to a balanced point. Kind of crazy.

Oh, ride height was pretty much 4mm all the way around.