You should always do plates with springs as you only have to align it once and you can get the full benefit of the lowering by using reasl alignment numbers.
You can't go wrong with the Steeda Springs either
good choice!
What Caster Camber Plates did you get? Steeda?
Getting C/C plates with any aftermarket spring
is a good rule of thumb.The great thing is that you
will only have to align it once.