Already have the 5100's lol. Those stock springs are sag city right now and my bump stops have had a good workout the past several weeks I've been waiting on eibach to ship (I've gotten real good at dodging even small potholes/bumps in that heavy pig). I have thought about going cheap and running the eibach springs on the 5100s, but I wanted to see if eibach has theirs valved any differently to run with their springs. Since I see all the front eibach **** in stock most places I asked Nick to hound them about shipping me the front half of the kit before I start running through other options. Still have my build notes from talking to FilthyMS about King's in my back pocket should I get frustrated enough to spend $2600+, but they said 1-3 weeks on delivery.