Model weighed in (fully loaded) at 11.25 ounces. Quite heavy for a scale model of that size.  Liftoff was very good, the D12 gave it a nice acceleration, more than I expected.  However, at burnout there was a slight "wiggling" but the Atlas - V straightened up and continued up for more altitude (probably due to the extra mass given by the weight) where the ejection charge went off right at the apex (apogee), allowing both parachutes to deploy nicely.