The hows and whys?
The mounting of the brakes being the main difference - what else stands out? Scott comes with bars
The proper comparison should be the Foil vs. Oltre XR.4. Bianchi hit it right with Countervail tech, fast and smooth, so my vote goes to the B. The Foils are fast but ride like schidt, too harsh. Riding buddy is same size and same pedals so we swap bikes sometimes. He had a Foil, worst riding aero frame I've ever experienced. Glad he got rid of it. Scott seems to have a history of jackhammeresque riding bikes. Had an Addict R1 that had no vertical compliance whatsoever, all nervous and jittery anytime the pavement was less than ideal.