I took the 400i as an upgrade to the DUR. It has better shields (1 x S3), better speed (185 SCM, 1250 MAX), better radars (3xS2), larger cargo grid (42SCU) and slightly better armament (6xS3, or 2 x S4 and 4 x S3). It is not, as they claimed, a competitor to the Connie. Unless you are going...