Ride height isn't nearly as much a concern to me as jumpability. The silver springs are intended for LT, but they are compressed as much or more than my current new green ones now. The LT setup makes for much softer suspension if I'm not mistaken, which won't do me any good for jumping.

I just changed to silver and left the oil alone. If it's too bouncy, I'll add a little 55 to the 30 to thicken it up a bit.