From my experience with calipers, bolted vs mono block isn’t all that important as long as the bolted interface is done properly. That entails getting the fasteners as close to the rotor as possible and maximizing contact area between the two halves. Most the deflection should be between the joint/bridge and the bottom edge of the caliper regardless of how it’s constructed. In my mind for bikes, most the benefit of a mono block lies in packaging. Not having to worry about big bolts frees up space. The bridge across the center of magura calipers would be hard to fit...