I'm currently running a light Jeep on an AEV 2.5" which netted me around 3". I run a PS brawler lite front bumper with no winch. I run a TF rear tire carrier and a Metalcloak rear bumper with 315's. I also run the rubi rails. No other weight added. I thought about changing the 5100's, but I really think the coils are not loaded enough on the AEV. I'm looking for a little softer ride on road. I really only want 3" of lift. Will these coils be a better option paired with the 5100's??
I would think it's more likely your shocks. I also have the Bilstein 5100's. I switched from RK 2.5" springs to Evo 4" and didn't notice much of a difference. Many say that the 5100's are stiff. I get pretty beaten up on the fire roads on the way to the trails.
I'm planning to upgrade shocks at some point. Probably Fox 2.0 with reservoir.