1: Ouch, hot pixel in lower left. Glaringly hot. I wonder if the warranty covers single pixels? Hope so.
2: Maybe I've misunderstood shutter angle, but isn't 180 "normal" and anything greater than that is a longer shutter duration? So 270 let's in more light than 180, no? Regardless of the exposure specifics, this test shoot didn't seem to have the typical long-shutter look to it (nor a short-shutter look for that matter)... The motion all looked pretty standard to me. Color me confounded.
EDIT: are you confusing shutter angle (degrees) with shutter speed (fractions)?