Best Bike Split Import to TrainerRoad

I wish to import a BBS plan into TR. BBS provides several options including Ergo Power, MRC FTP, TrainerRoad (beta).
Which of these should I use? Or does it matter?

Thanks,
@Kid

I used the MRC file. Be sure to watch this video: https://www.youtube.com/watch?v=jU-J3Ax5kD4

Thanks GMAN…my BBS races loaded just fine.
Cheers,
@Kid