As some of you may recall, I have a RE 2" budget lift installed on my '06 TJ. I'm looking at the RE 3.5" Super Flex or Basic lift for next summer (leaning towards the super flex). My question is, can I keep the 2" spring spacers with the 3.5" coil spring lift (for a 5.5" lift) or is that a bad idea?? Also, at what point will I need to look at longer shocks? I'm running the shocks that came with the RE budget lift, for what that's worth.