Well, the offline/online process for tapeless works if you are careful and do things right. FCP relies on file name, reel number and timecode in order to relink footage. So the best way is to use Log and Transfer to do the initial ingest. If you don't, then the timecode for each clip will start at 00:00:00:00, and they will lack reel numbers.
How did you convert the footage initially?
Shane
Little Frog Post
Read my blog,
Little Frog in High Def