Printed for an x5s that is on the way. Extremely stiff brackets at 40% infill using Hatchbox PLA. I must have a little bit of over extrusion going on, since the small holes on the end stop bracket became filled in. Took 10 hours or so to print with the 40% honeycomb infill and adaptive slicing.
Adaptive Slicing (Slic3r) ~60% Quality