I'm running the same Ironman suspension lift as Ben i.e. Ironman springs and shocks. Bens' last photo looks like he has more articulation but the attitude of his truck is biased a bit more to the rear than the photo of mine I think. I'm wondering in the shot of mine whether the engine weight is coming more forward and the axle is "working harder".
No bumper probably creates the illusion that there is more travel than is actually happening, I was trying to compare the heights using the bottom of the headlamps as a datum and I don't there is much in it Ben. I'm on 33's, what tyres were you running in your photos? If they were 35's then it might look less as it's filling the arch a bit more?