Shot the SCAR and Desert Warrior today. The reciprocating bolt on the SCAR has forced me to change my forward grip (I am usually holding onto the receiver). I might have to go with a vertical grip or just retrain my muscle memory to this new way. The recoil impulse is very odd. It's a nice slow push - absolutely ZERO muzzle climb. It's much softer recoiling than even the 416. I was very surprised. With the muzzle brake that's on it, it is LOUD. My factory sights were about 3 quarter-turns of the front sight low. Easy fix, but I was surprised they were that far off. The iron sights will just be for backup, since I'm probably putting an EO-Tech or ACOG on it soon.
The Kimber was REALLY nice. It's been a long time since I've fired a full-size, steel-framed 1911 (my other 1911 is a Colt Lightweight Commander with a bunch of work). They are so smooth. It was immediately accurate - no adjustments required. Follow-up shots were good. I may swap to one of those fiber optic orange front sights since picking it up was a little difficult. My buddy's HK45 was much easier to find the front sight.
Overall, good day. Both guns work and both shoot (reasonably) where I want them to. The Kimber DW will go back in my nightstand after a thorough cleaning, stoked with 230-grain Golden Sabers. :)