hi @chmee and @peoplemerge
here is some additional information - hope it helps.
round trip with the blackmagic demo clips does work without the Reel No. (so there must be some additional information in the metadata for the cinemadngs)
i tried this with fcpx 10.0.8 and premiere cs6 (sorry that 5.5 didn't work for you chmee).
so using shot1 - shot 5 cinemaDNGs from video.blackmagicdesign.com, i started a project in davinci resolve 9.1.4
first screen shot shows the media pool with NO Reel No.

the second screen shot shows the round trip imported clips from fcpx. you can also see that the media pool begins with the black frame clip so the Master Timeline would be in that order. the order in the confrom window matches my edit in fcpx.

the third screen shot shows the round trip imported clips from premiere cs6

link to fcpx round trip file
http://50.56.67.113/ml-25june13/bmcc-shots.fcpxmllink to premier roundtrip file
http://50.56.67.113//ml-25june13/bmcc-shot-roundtrippup.xmli did try to use the Assist Using Reel names after i'd renamed the files to what i thought was the black magic camera convention - and it didn't work for me. though when i did this i thought the reel names from bmcc were all C000xx - wonder if they need to be an actual number without the C for resolve.