Latest video of a Z19, as pointed out on the Chinese military aviation blog, shows MWS, probable LWR similar to the Z-10 and the rounded radar. However, to my eye it also looks like they've doubled the size of the flare dispenser on the right side of the fuselage compared to previous photos. Old photo of '80' attached for reference - flare dispenser is under the 80, and is rectangular, about half as wide as tall. Same in by's picture above. New photo seems to be square in dimensions.I'd agree with you Deano. They're two adjacent tail numbers - 991556 (flat radar ) and 991566 (bulbous radar - photo above from by78). Though there is a 3rd - 953522 with the bulbous radar also .